In the experimental phase can we think of locking the dimension driven by the design table?

We found on experimentation that the dimensions that are driven by any equation in SolidWorks or
formulas in Excel gets locked i.e., we are not to edit that dimension directly.

If in any case I want the dimension only to be driven by design Table and be non-editable on SolidWorks.

can anyone give any suggestion for locking the dimension????????