To load these files into Amiga Flight Simulator, select the menu option
titled "Load RAM from Disk".  You will be asked to insert a formatted
disk.  This means the program wants to see a disk with a file named 'F7'
on it in the internal disk drive df0:.  Hit the space bar when it asks you
to press a key.  The program will ask you to replace the master program
disk.  Now go look at the Situations menu.  The new sites should be present.

You can keep all these files on one disk, but you must rename one to 'F7',
and it must be in the root directory of the disk.

If you want to try another grouping, you must leave Flight Simulator, and 
rename 'F7' to some other name, and rename another situation file to 'F7',
and restart the simulator.

Or, you could put each situation file on a separate disk, and rename each
file to 'F7', and you could insert each of these disks at the 'Load RAM
from Disk' menu...

This tip courtesy of Harv Laser, SYSOP of the Amiga Zone on People Link.