Crew served weapons abandonded in editor

[jp10]

Greetings,
I have a problem in the editor. I loaded paratroops into a transport but then discoved I had my cross loading wrong. I unloaded the plane but the mortar crew have abandoned the gun and I cannot rejoin. the 'J' key only seems to open the roster.
If it makes a difference, I did change the type of mortar for the unit. I need the M224 in 1983 but the game dates have them unavailable till 1987. US Rangers and the 7th IDL had them before that date.
Is there a way to rejoin or recrew them short of deleting and rebuying and changing?

Thank you very much for you consideration.


NB: I searched with "rejoin crew, abandoned gun, crew, rejoin, and paratroop weapon rejoin" but did not find a relevant post.