Issue description:
I changed from Kore to Yatse. I cannot find anywhere the simple option to update and/or clean the library from the Yatse app. I looked everywhere, driving me nuts.
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Additional information:
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Where is the option to clean and update the library?
You did not look enough 
Just import the commands in the custom commands panel.
It worked, thanks! Wouldn’t have found it there my self. I can rest now.