There is no contrast adjustment or backlight on an OLED, there’s no connection on pin 3 (where the output of the trimmer goes), so you can leave it out.
You can raise the display by putting another row of black plastic onto the pin header. Get a spare piece and push out the pins and then push this onto the pin header. You only need a few pins with extra plastic each side and in the middle. You can often slide the pins around in the black retainer to get the right length.
Alternatively have another case top made without the window (if clear) or get a clear window made. fcd72 can do this?
Thanks for the feedback. I will leave the trimmer out and save it for the next Shruthi-1 project.
I actually ordered a WASP XT case from fcd72. I guess I will wait until I have the case on my table to see how high I have to raise the display. Might gonna buy an extra frame …