I don't know exactly what you mean. The SDcard slot will be on the left side a bit in the direction of the connection panel. It is designed to fit if the display is soldered nearly up to the top side. I made the slot anyways a bit bigger if somebody has soldered it already a bit lower. If I see it correctly, it is so big, you can place the display with the stackable headers completely down the PCB or completely up to exactly beneath the acrylic control panel.
Yes I could place it on the other side, but I think people with an FM synthesizer will be smart enough to connect together 6 simple parts correctly
If not, it's simple to remove and replace those parts.
And as described in the readme file, there are 4 versions: 2 for small buttons (with 3d printed adapter) with and without LCD window and the same for the bigger buttons like from the Ambika.
You can see the blue lines making a window in the 2 files with ending names "Windowed" or not ? These lines will be cutted by laser/mill. But you do not need the window, if you use clear acrylic. Then you would
take one of the versions without "Windowed" in the filename.