yes it can be done-- once you have the file open you want to make the gedcom from–
go to EXPORT DATA under File on Left side
Select Gedcom and where you want to save it to ( Desktop is a good option) and hit save–MAKE SURE YOU NAME IT SLIGHTLY DIFFERENT THAN THE ORIGINAL FILE-- such as RAPP Lines would be renamed RAPP LINES 2…
A popup screen will appear–check all the boxes you need then
Click on the ARROW NEXT TO EVERYONE
Click on SELECT FROM LIST
then just for good measure click on UNMARK
a drop down menu appears and click on EVERYONE IN FILE
Then put a checkmark either in the father or the mother of the couple
Highlight that PERSON (in blue)
Then Click on MARK
Another Drop Down Menu appears and pick
DESCENDANT OF HIGHLIGHTED PERSON
Another pop-up box appears and these are your options
and you can limit it to 5 generations–Pick which option you want and then say okay…
Then go in and put a checkmark in the box for the spouse If they don’t have one already
hit select and then OK on the Gedcom EXPORT Options and you should be done BUT you MIGHT want to open the gedcom to be sure it’s okay–have occasionally had one that didn’t work…
Reason I said to hit UNMARK 1st is occasionally there was some one (s) already marked that I didn’t want in the export