PenciDesign replied
Hi,
You can install plugin Customizer Export/Import & Customizer Reset
After that, go to Customize > Export/Import > and export all the current customize data - you will get a .dat file.
When you want to get back this data, let's go to Customize > Click on button "Reset" at the top to reset all customize data to default and go to Customize > Export/Import > and import the .dat file you got above.
Best Regards,
PenciDesign