Submitted Questions wrote
1. To run matlab graphic mode is very slow in the server. Is it possible to install FEATool in matlab non-graphic mode?
Yes, you can run scripts without the GUI. After starting matlab just run the command:
addpath(genpath('path_to_featool_directory'))
This allows matlab to find the featool functions (which is done automatically when starting the gui). If you download the zip archive
https://github.com/precise-simulation/featool-multiphysics/releases/latest you can just unzip it and put it anywhere you like.