Leading spaces: I'm developing a script to simplify the process of material creation using SAP transactions MM01, MM02 and SM30.
Part of the processing involves copying data from a control material master record to a new one.  The "Sales Unit" field (VRKME) is copied to a work field and then subsequently to the new material creation screen.  During the copying process all leading spaces are dropped. 

I have used the following code:

  Set V[w_vrkme] "&F[Sales unit]"
.....
.....
  Set F[Sales unit] "&V[w_vrkme]"

but, as I say, the leading spaces are dropped.
Is it possible to copy the field and retain the leading space(s)?

Please use

ProcessingOption leadingspace="on"

  Set V[w_vrkme] "&F[Sales unit]"

ProcessingOption leadingspace="off"

and

ProcessingOption leadingspace="on"

  Set F[Sales unit] "&V[w_vrkme]"

ProcessingOption leadingspace="off"