Associate Structural Member mark to Formwork Family

hi guys, need help with a script for shuttering quantities im making.
need to associate the structural mark of lets a column with its formwork [shuttering family].
ie. if column 1 mark is [c1] then the associated shuttering mark should be [c1-1,c1-2,c1-3,c1-4]

Concrete-Rectangular Beam.rfa (268 KB)
Beam_schedule.rvt (1.2 MB)
Formwork_script0.8.dyn (77.3 KB)

so i was able to connect the data properly but had to reconfigure the family placement.