exportFigureGUI bugs and nice to have(s)

Playing with the exportFigureGUI, I found some strange behaviors and made a list of a few bugs/tips I encountered:

• 🐛 [bug] I can't modify the flags (I'm probably doing something wrong here, I imagine, but the buttons are grayed out once I update the first figure).
• 🐛 [bug] Errors and warnings keep appearing in the command window.
• 🟨 [important] Create src folder to store funcitons and convert global variables to function arguements
• 🟪 [important] Temporary save the .fig to restore the figure
• [Enhancements] It is not possible to specify the folder in which to save the plots (ok, I can navigate to the correct folder before using the function).
• [Enhancements] The 3 numerical inputs located just above the export button do not have a "reset to default" option. It might be nice to trigger it by entering a 0 (or with a dedicated reset button).
  • [Update] It would also be nice if this button updated the figure with the default values (and not just the box values).
• [Enhancements] The linewidth should be a selectable variable. I'm trying to export some plots from post-processing, but I can't even see the data that overlap with the current setting.
• [Enhancements] I would move the "Update preview" button below or to another position. (The "Update figures" button makes sense to be the only button there).
• [Enhancements] I would add a button to reset the figure. At the moment, I have to recreate it.
• [Enhancements] A more advanced feature: I would like to be able to save settings that I frequently use ("save settings," maybe it saves variables that can be loaded). This might also be useful to have standardized export settings that I can share with others.