Pass multiple LUs to a macro

[mr-martian]

det_agr: [2](always
         1(det)[gender=(if (2.number = pl or 2.gender/sl = un) un else 2.gender), number=2.number]
        ) ;

...

3(det_agr)[2=4]

This would probably require disallowing numerical categories names, but that should be fine. Also might need to put the argument count somewhere else (or somehow else) to not mess up the parser.

[rinkydevi]

hey @mr-martian i would to like to work on this issue, how can i proceed