I see... What a shame...Unfortunately no. If there is no f(x) button then parameters cannot be used for that measurement.
The offset function is quite basic and there have been calls for it to be majorly overhauled.
Maybe one day.
You will need to apply some dimensions and constraints to the offset sketch. Link dimensions as needed, then you can control the Offset dimensions thru parameters in the EE
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Can you post a screen shot of the sketch you are trying to Offset?EDIT: Trying it, I think this model of mine is far too complex to be feasible. There's gotta be some easier way to do this.
Yes, thru the Equation Editor you can set up equations to drive dimensions. Take a look in the Help manual on the EE.Does this program support driven dimensions?
Depending on what you are doing - sometimes doing a thin wall extrude boss/cut can get the same end result and is parametric.