Latch automation without holding mouse button down?

[heppareppana]

How do I do 'latch' automation in session view? I have several values to automate and it is too time consuming and tiresome to hold down a mouse button for 32 bars for each one of them.

This is what the manual says:

19.2.1 Session Automation Recording Modes
The automation recording behavior differs depending on how you adjust parameters while recording. When using the mouse, recording stops immediately when you let go of the mouse button. This is referred to in some editing applications as “touch” behavior. When adjusting parameters via knobs or faders on MIDI controllers, recording will continue as long as you adjust the controller. When you let go, recording will continue until the end of the clip’s loop and then will “punch out” automatically. This is known as “latch” behavior in some applications.[/color]

[Stromkraft]

time consuming and tiresome to hold down a mouse button for 32 bars for each one of them.

Recording what? Your last value? If it's just the same value why not just draw it in? That potentially takes a few seconds.

And what do you want to do with the latch behaviour?