Thanks for the quick reply. I ended up forking your plugin to fit our needs and submitted a pull-request with a simple expansion incase you wanted to add it in. It’s a very minor change that allows it to be disabled via a filter in a mu-plugin, and I extended the readme.txt to explain the usage. Feel free to reject it if it’s not a good fit.
https://github.com/kevinvess/wp-force-login/pull/52
I’m new to WordPress development, but just found the github repo for this plugin. I’ll see if I can generate a version for consideration. There appears to be some issues on the repo requesting similar features.