Separate configuration and execution of FixInsight

Currently there is only one menu item that calls the FixInsight dialog. This dialog has multiple functions:
* Configure FixInsight
* Run FixInsight on the project
* Run FixInsight on the current unit

I already complained about the last one, but it's equally inconvenient that the only way to change the configuration is to run FixInsight afterwards. Consider this:
I find that there is a 3rd party unit that generates many warnings and I decide that I won't bother checking this code in the future because I am not going to fix it anyway. So I want to add this unit to the exception list. How do I do that? If I open the dialog, I must run FixInsight afterwards in order for the configuration change to be saved. But I am in the process of going through the list of warnings, which will be changed when I run it again. At minimum I lose the current position in the list I was looking at.