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[Robert Moskowitz]

On 05/25/2018 03:41 PM, Lars Behrens wrote:
> Am 25.05.2018 um 19:42 schrieb Robert Moskowitz:
>
>> Oh, and I haven't found how to get <start-button>L to lock the screen.
> Settings > Keyboard > Application Shortcuts
>
> and then (re)define a shortcut for xflock4, which is the locker.
> It might already be defined, in most distros ctr+alt+l is used.

Thanks!

I just found this a couple minutes ago and was documenting it for the 
next time before I posted here...

You need to add a new keyboard shortcut for xflock4, and then maybe 
delete what you don't want.  There is no option to edit the keys for an 
existing shortcut.  Only assign a different app to a set of keys.