Compendium Integration

I'm trying to add compendium integration to a custom sheet, and while that part is fairly simple, my problem comes from clearing the fields For example, if I make a new spell slot, then I drag a spell onto, the fields that are applicable fill in like they should. Then if I drag a different spell onto that same spot the information that is different changes but if the first spell had a target field, but the second doesn't (like cone of cold, then alarm) it doesn't erase the fields that the new spell DOESN'T have. How do I make it do that?

I don't think the drag/drop feature can erase attribute data. I believe you should Add a new repeating row and drag/drop to it in order to avoid any attribute value conflicts.  

Second question, what is the attribute value for the description? 

Peter W. said: Second question, what is the attribute value for the description?&nbsp; Hmmm. &nbsp;Using the PF compendium and sheet as reference, I'm guessing all text for the compendium entry(class="pagecontent") that isn't found under attributes appears to be considered description (add accept="Content" in your description input). <a href="https://wiki.roll20.net/Building_Character_Sheets#Compendium_Integrationi" rel="nofollow">https://wiki.roll20.net/Building_Character_Sheets#Compendium_Integrationi</a> : "You can use accept="Content" if you wish to receive the plaintext content from the entry (the content located above the "Attributes" header)"