>You can do a lot with #DEFINE and I might be able redefine the memvar so that it points at the new class and the property. Not sure if that's possible, but I think it is.

This might work for you. Notice that you can't name your property the same as the variable because the #DEFINE has "issues" with that later on in the code.

#DEFINE SomeVar ovar.SomeVarProp
ovar=CREATEOBJECT("varobj")

SomeVar = 5
SomethingElse = SomeVar
? SomethingElse
? SomeVar
DISPLAY MEMORY LIKE Some*  && Only see the SomethingElse variable

#undefine SomeVar
DEFINE CLASS varobj as Relation
SomeVarProp = NULL
FUNCTION SomeVarProp_assign(xval)
this.SomeVarProp = xval
ENDFUNC
ENDDEFINE