Are your layout folder was too big and hard to control, difficult search? Now with Android Studio you can split it up so easily managed as shown below

Step 1: Right click on the folder res selected new/Directory then naming the folder layouts

Step 2: Right click on the folder you just created layouts, selected new/Folder/Res Folder.

Name the folder and reasonable path (within layouts).

Wait awhile file gradle update again. After the update you will see 1 folder home is yellow like the color of the folder res but not in layouts. In fact it is located in layouts but only due to current layouts 1 folder is the home so it does not show. You continue to create another folder name note like home will see 2 folder within layouts.

Now you create the folder layout (no 's') located in the home and notes and use normal.

You can also create a menu, drawable in home, such as layout note.

If you notice, gradle file will add a paragraph like this:

sourceSets {
    main {
        res.srcDirs = ['src/main/res',
                       'src/main/res/layouts/home',
                       'src/main/res/layouts/note'
        ]
    }
}