There is an online tutorial demonstrating how to add shapes, labels and links to your map
on the
EPE website.
The palette shows items that can be added to your map. To change the order,
right click and select Customize from the context menu.
In the dialog you can use the arrows to move palette items to your preferred position.
EPE has a powerful built in
Search facility.
Frequently you will want to resize objects or change a property of all objects of a given type.
To do this, select one item , right-click to get the context menu and then select Select all of the same type..
Now, edit the property in the Properties viewer and the property will be set on all selected objects.
In the label property view, click on the Text property to open text editor. Highlight the text that you want
to format and use the toolbar to set the required formatting. Closing the dialog will apply the changes.
If the text is not highlighted then the changes will not apply!!.
You can select several items to align using Ctrl-Click, or using the Marquee. Once >=2 top-level items have been selected,
the align menu becomes activated:

These work in the same way as in PowerPoint.
In several contexts you might want to shrink ports to a small or invisible size. However once this has been done it is hard
to select them in order to restore them. You can restore them using the
Select Items By Property Value context menu tool.
Choose 'port' as object type, and 'Line Width' as the property, and '1' as its value. IF you've not changed the port line width
then this will select all the ports. You can then alter the size property for all the ports.