Way to have high settings only in costume editor?

[biostem]

So I have a 1st generation GPD Win, and I can get CoH to run acceptably on it, if I turn all the settings down and use the simple rendering launch command.  If I'm just in the costume editor, I can use much higher settings, but was looking for a way of getting best of both worlds.  In Champions Online, IIRC, they specifically have an option to raise the settings in the costume editor.  I've tried the Titan server option, to see if the game respected different settings for each instance, but it did not.  Any suggestions?  Thanks!

[biostem]

Any insights into whether this can be done?  Thanks again!