Grc dynamic variables

Is there anyway to change the limits of a slider variable during runtime
in
grc?

No, currently the forms.slider cannot have its min and max changed
during runtime.

Usually, the work around would be to use more variables to scale the
output of the slider according to another variable:

output_value = scalar*slider_value + offset

where offset and scalar can also be graphical variables that can be
changed at runtime.

-Josh