An alternative method that requires a bit of setup effort but hopefully little after that is to create a custom notehead set with red noteheads, save it as default, assign a key command for applying it to selected notes - and then use wherever needed!
If you do do that, be aware of the note in step 7 of that linked topic - editing a notehead that appears in multiple notehead sets affects its appearance in all sets, so make sure you’ve added new noteheads that only appear in your custom notehead set.