Xlate STRING Action – Using fields, temp variables?

Cloverleaf 6.1.1.

I am trying to put together some training.

It does not appear in 6.1.1 that the arguments to the various STRING Action functions (for example xlateStrSubstring) allows the use of temp variable  as arguments.

The format is ‘xlateStrSubstring first last’ It woild be nice to be able to do something like this ‘xlateStrSubString @my_first @my_last’. I guess if Temp Variable could be referenced then I would think using actual Data Fields or even ITERATE Variables would be useful.

I think it would make the Action more functional. For example multiple STRING Actions could be aggregated in the same Xlate to achieve more complex solutions.

Does anyone know if this can be done in 6.1.2 or 6.2?

Thanks