The "Frames Mode" and the "Series Mode" can have different number of rows and columns, thus they can have different number of tiles.
The program offers a number of predefined tiles layout, and allows the user to select the rows and columns of the screen grid as well.
If the User Defined checkbox is checked, the user cannot select a predefined layout.
Uncheck this checkbox to select a predefined layout.
The main window with one tile

The main window with six tiles
