Toggle visibility of receiver lines on waterfall

[goscickiw]

[Copied from groups.io as it wasn't answered there. Link to groups.io thread]

When monitoring multiple narrow channels on a wide part of the spectrum (e.g. airband), the lines that mark the receiver's position are so close together that it's hard to see if there's a signal or if the receiver is properly centered on the signal without having the receiver selected and seeing the IF display. I can't use the Receiver Pane or the Matrix, as on my PC they slow down SDR Console too much.
Would it be possible to add an option that hides the receiver lines only on the waterfall part of the display? They could still be visible on the spectrum part so I can see where the receivers are.

[PD3LK]

Yes good point. On/off button or transparency adjustable?

[goscickiw]

Probably something like this would be best: On/off for the waterfall part (the three vertical dotted lines), and adjustable transparency for spectrum+waterfall.