[iremember]

Many others will be able to tell you about it better than me but, i think you need to open "stationary ships" or just "Ships".

Scroll to the bottom where you will see "Test Runway 1" and 2 and 3.

Select 3 i think it is and place it where you want your airspawn to be.

Then select "homebase" and add that to it, select the properties of your homebase ie add planes colour etc

And you should be good to go.

As i said many others will explain better than me but that's the basics, hope it helps

~S~