This tutorial will guide you on how to build multi-level GUI tab files using MATLAB as needed. For example: tabandsubtabs.fig, tabandsubtabs.m, and the hideorshowcontrols.m function can toggle control visibility between tabs using values in 'UserData'. Embed the hideorshowcontrols.m function in your figure.m file and set 'UserData' in the uicontrols section to indicate tab connections.