When you start the application for the first time, the main components that can be noticed are:
Menu (on its usual position)
Application Toolbar (right below Menu)
View Selection Bar (in the upper right side)
Project Guide (in the lower left side)
Project Guide Details (in the middle right side)
Active Window (in the lower right side) - currently set on Info
For other views, the Active Window is splitted in two components (a table and a graph).
In later project steps you will notice a View Specific Toolbar (changing with the current View) below Application Toolbar. It comprises only the commands needed only for the associated view.
Also, at a later stage of your project a Details Window is available for task and resources (it appears below active window when is activated).
Some of the previously presented components can be hidden/showed:
Project Guide panel
a) click on the red-circled button below to Hide Guide panel (or in the View menu click Guide)

b) click on the red-circled button below to Show Guide panel (or in the View menu click Guide)

Project Guide Details panel
can be hidden by clicking on the corresponding Close button (as described before for the Project Guide). To activate Guide Details open View menu and click on Guide Details at the bottom of the drop-down menu.
If the current view contains tables with tasks or resources, a
Details Window is available for
them on right-click menu (on the table and graph area) or from the
icon in the View
Specific Toolbar.
Active Window
For some views, the Active Window is splitted in two components (a table and a graph), each of them might be extended or collapsed by hitting the small arrows on the panes separating line.

In Settings menu, Options, Schedule tab you can change the settings for the current project:
a) Date format (select from the drop-down list the desired aspect of the date)
b) Hours per day
The working hours considered in time calculations for every 1 day duration declared for a task in the table (e.g. if set 10 hours, a task with 1 day in the Duration column of the Gantt table and a calendar with 8 working hours, like Standard calendar, will appear larger than 1 day in the Gantt Graph). That means the total working time of a task is calculated multiplying the duration (if given in days) by the value set for Hours per day indicator. Graphic duration (in the Gantt Graph) will result from the calculated working time and the task calendar. Concluding, the working hours in the calendar have to be correlated with the value set for Hours per day.
c) Slack for critical tasks - a task is marked as critical if a delay with more than the slack value will change the Project finish date.
Increase this parameter value if you want to see "earlier" the tasks that may influence the end of the project.
d) Duration units (d = days, h = hours, m = minutes)
e) Currency units (editable field)
f) Force resources to use task calendar as default
marking this option the resources will work following task calendar instead its own calendar for every new task by default.
g) Custom program
Predefine here a working program that can be used for default special days definition in a calendar.
In Settings menu, Options, Startup tab you can check/uncheck to see the Welcome dialog when starting the application.
Click on the button in the upper right side of the table to customize it.

Select in the drop down panel the visible columns you need. The selection made here is also applicable for printing and the reports that can be generated in PDF format.
Below column titles there are three more options:
Horizontal scroll (extends columns width to fit to window size)
Pack All Columns (reduce all visible columns width to a minimum size)
Pack Selected Column (reduce current column width to a minimum size)
Drag and drop the column header horizontally to change column position.
Columns can be also inserted (if not already visible) or hidden from the drop-down menu opened by right-clicking on table header.
There are three custom columns available for users. After making them visible as explained above, to change their default names (Data1, Data2, Data3) right-click on the column header and select Edit name... command (available only for custom columns).
In Settings menu, Options, View tab select whether to view or not some graphic elements:
vertical lines (project start - green color, project finish - red color, current date - blue color)
horizontal and vertical gridlines corresponding to table rows and bottom units
non-working time marked with vertical grey stripes
focus point marker (a blue indicator on the chart header showing the fixed date when zoom in/out)
text on the right side of the taskbar (task ID, task name, task duration, task assigned resources)
Customize how the taskbars and non-working time are drawn with the Round/Normal view command found on right-click menu or double-click in graph area (available for Gantt Chart, Task Sheet, Resource Sheet). Round view is the default selection and it extends taskbars lenght to the beginning of its first day if task start date correspond with the working time start date (according to the Project Calendar) and similar for the task end date. A correction is made for the non-working time, too. Normal view shows taskbars and non-working time approximately as they are.
In Settings menu, Options, Colors tab (or rigt-click in graph area of Gantt Chart, Bar colors command), the default colors for taskbars and completion bar can be customized. Select the element which color has to be changed (activities, phases, milestones, projects, critical, baseline or completion) and pick a color in Swatches tab or define its basic color values in RGB tab. As you set new colors, the modifications are made in the Gantt Chart, so you can see the results without closing the dialog window. The default colors can be set back by pressing the Restore default button for one element at a time, or Restore defaults for all elements at once. In Swatches view, recently used colors are stored.
To change colors for specific tasks, select the task and click
on
icon in View Specific
Toolbar, or right-click on the taskbar, Customize bar command. If the current task is
a phase, that mean it has subtasks (activities, milestones,
subphases), the selected color can be used for them too, by marking
the corresponding checkboxes. To quickly get back to default colors
for the entire subtree including the phase, click on Default Subtree Colors button.
Printing is available for all views in View Selection Bar and corresponding steps in Project Guide.
To open Print Preview window go to File menu, Print
preview, or click
command in the Application Toolbar.
First commands in the toolbar are designed for page
circulation (go to first page, previous page, next page, page up,
page down, last page, go to page no..../....). A very intuitive way
to go directly to a page is to activate
(multiple page) command and click on the
desired page.
To scale the information in the pages, use the button of the combo box labeled Scale to: and select a zoom percent or type directly in its editable field. The number of pages will be modified accordingly.
The next icon
, if activated, helps to view header on all
pages.
Page Setup button will open a new window with usual paper and printer settings.
Print to PDF... command is used to save the previewed report as a .pdf file.
Print
command will trigger the printing
process.
Close button will end the Print Preview dialog window and return to the current application view.
New (file) - create a new file
Open - open existing file
Save - save current file
Print - open print dialog
Print preview - open Print preview window
Undo - revert the latest action
Redo - revert the latest undo action
Current project: - select a current project from the combo box
New (project) - create a new project
Email assignments - send assignment information to resources
For each View (Project Portfolio, WBS View, Gantt Chart etc.) only the applicable commands are visible, from the following:
Insert line - insert a line above the selected task/resource/client
Insert subtask - insert a subtask (a task indented one level below the current one) = a subdeliverable for the current deliverable
Delete (project/task/resource/client) - delete the selected project/task/resource/client (this command works for multiple selection, too)
Indent task - move a task to a lower outline level; this task will become a subtask for the preceding task that was on the same outline level.
Outdent task - move a task to a higher outline level.
Move up - move a task one row up on the same outline level (among subtasks of the same phase)
Move down - move a task one row down on the same outline level (among subtasks of the same phase)
Expand all - expand all collapsed phases and projects down to the last level
Collapse all - collapse all expanded phases and projects up to the first level
Cut - cut the currently selected objects: projects/tasks/resources/clients (this command will remove some of the properties when pasted: links to tasks outside the selection, completion value, assignments etc.)
Copy - copy the currently selected objects (this command will remove some of the properties when pasted: links to tasks outside the selection, completion value, assignments etc.)
Paste - paste the objects from the clipboard
Link tasks - create a finish to start link between selected tasks (when multiple tasks are selected, the tasks will be chained by links)
Unlink tasks - break the link between selected tasks (when multiple tasks selected, all the links inside the selection will be broken)
Go to selected task - start date of the selected task will be moved to the focus point
Critical path - show/hide critical path
Assign resources - open Details window
Zoom in - change the timescale to see a plan in more detail
Zoom out - change the timescale to see a plan in less detail
Set as current project - set the selected project as current
Show/Hide details - toggle between view/hide Details window
Work - show work information in the right pane
Cost - show cost information in the right pane
Projects - show assigned project information in the right pane
Ctrl-N - open new file
Ctrl-O - open existing file
Ctrl-W - close current file
Ctrl-S - save current file
Ctrl-P - open print dialog
Ctrl-I - import file
Ctrl-E - export file
Ctrl-Z - undo last command
Ctrl-Y - redo last command
Ctrl-Right - indent current task
Ctrl-Left - outdent current task
Ctrl-Up - move up current task one row (on the same level)
Ctrl-Down - move down current task one row (on the same level)
Ctrl-NumPad + - expand all
Ctrl-NumPad - - collapse all
Ctrl-X - cut (entire row if selected, or selected text in editing mode)
Ctrl-C - copy (entire row if selected, or selected text in editing mode)
Ctrl-V - paste
Ctrl-L - link selected tasks
Ctrl-U - unlink selected tasks
Ctrl-G - go to selected task