I found some of these points in the thread 'Managing big empires - tips and tricks sought' from Space Empires V FAQs forum and some other threads. These points will be useful to new players here incase anyone might be only checking the Space Empires V General forum; so I thought that I'd repost them.
These are some key points. Some of them have been stated by others.

use those Hotkeys
-the cursor popup tool tip shows them; or set your own in Game Menu\Controls

Waypoints for ships and planets:
-select a sector, press and hold Control then press a number(1 through 9)
-on a ship turn press one of the numbers(1 through 9) to send it there.