To create a view you can right click on Audio and select Add Library View and select the type of view (like Album) to create. The name of the new view should be unique. If you have customized a view and want to make a copy of that view, you can select that view, right click, Customize View, Saved Views and save the view under a new name. Then when you Add Library View, you can select that saved view and go on from their.
To add a rule to look at a specific drive, right click on the View, select Customize View and then Set Rules for Display and put in the rule Filename (Path) Contains L: or whatever disk you want. Note it is not specifically set up for drives, just Filename, so you have to put in the L: yourself. It will then only display media files from that drive.
You can repeat the process to create as many views as you want. I have more than 20 views - 5 for various classic, 2 for jazz, several for rock - which let me get to a particular genre easily. I also have one just for the vinyl that I have digitized, one for just hi-rez, one for DSD and so on. You do not have to go that far, but once you create some, you will see how useful they are.
I would make a library backup (File - Library - Back Up Library) before trying this - just in case.
Give it a try and ask if you need help.