I don't know of any way to get individual mods to remember their settings from when they were last active.
If you want, you can create separate profiles with different model settings.
- With the "Active Mods" tab selected, click on "Open Profile" at the bottom right of the 7th Heaven window.
- Click on your active profile, then right click and copy it (The name of the currently active profile is right under the "Active Mods" tab.)
- Name it whatever, as long as it isn't the same as another profile. (That would make 7H crash.)
- Then click "Open Profile" again, and select the new profile you just created.
Any changes you make are automatically saved to the active profile. So, if you create a setup that you like, and you want to experiment with different settings, be sure to make a backup copy of your profile in case you don't like the new changes you make.