Comment 1 for bug 1692261

Most controllers have shift buttons and it's easy to map Shift+Play to Brake, Shift+Cue to SoftStart.
Even though I agree it would be cool to make those features accessible to mouse users, I don't feel they should be in effect units because they are basically transport controls.
On the other hand, in effect units one could adjust the parameters.

Could they be longpress actions of Play button, depending on the play state, like it works with beatloop/beatlooproll?
Parameters would be in Preferences then. I use brake quite often and once adjusted, I never felt the urge to alter the parameters.