First off, Credit to my man Mike Seese at (@mikeseese@mastodon.social) - Mastodon for figuring out a couple ways to do this. As many people noted, each of these have pros and cons so pick what is best. I know this post is about disable tooltips but others were asking about changing the time. Setting the time to something large will act like it is disabled and with these methods below, stays persistent for most of your working time.
Confirmed in 5.3.2
Method 1
Shut down the editor, open “YOURGAME\Saved\Config\WindowsEditor\Engine.ini” and add
[SystemSettings]
Slate.TooltipSummonDelay=2.0
Save and close the file. The pro is this folder can be set to Ignore for your VCS. Con is if you are like me, you will delete this folder a lot so make a backup.
Method 2
Shut down the editor, open “YOURGAME\Config\DefaultEngine.ini” and add
[SystemSettings]
Slate.TooltipSummonDelay=2.0
Pro is that if you check in your Config folder, everyone can use it as default. Con is also everyone has to use it or modify locally.
Method 3
If you have access to the Engine file, SlateUser.cpp, you can adjust the time there. Con is that it is in engine file.
For 5.3.2, its line 47 in the .cpp file.
Method 4
Use the Console Variables Editor. This is a neat tool that makes a file for you and you can add everything it allows if you want. The con is you have to run it every time you launch the editor. Great if you have 20 things but not so much if you have only tooltips to deal with. If anyone finds a way to have this ConsoleVariableCollection file run on launch, you would be a hero if you posted the steps here.