P, Q, R parameter

[flick]

Note: V4 is suppose to have that fixed(nestingmacros)

There's a V4?  I'm stuck with Tormach's current release, need a workaround.

[BR549]

Then try the semaphore approach it does seem to work.  Do a search on this forum for semaphore Ray gives and example of how he did it.

[stirling]

If you don't actually want or need the parallel behaviour of the multiple macros, it seems a bit overkill to start messing with home rolled semaphores just to get a "sub call". Why not just put your library routines in... erm... a library i.e. a DLL?

Cheers

Ian