I’m unable to make Sim.Params visible in V7. I have the Show box checked in Symbol Properties but the Value is not shown on the schematic.
There’s currently a bug that makes the field 0-sized and therefore functionally invisible. The bug is fixed for an upcoming version, but for now you can make the field bigger by editing the size of the field in the symbol properties. You may have to unhide the size column by right-clicking the header of the symbol field table.