Same problem here with ca. 600 KeePass Entries. It would be okay for me to drag the subfolders to the folders in the flattened hierarchy but to add the whole folder structure manually and to manually convert every entry into suitable (sub-)category is to time consuming.
1) Add conversion from template to another template e.g. Login to E-mail
2) Make folders draggable
3) Make files moveable
4) Improve Keepass import so it imports the folder structure as well
I want to change to Enpass but this is to time consuming to me.
Thanks for your great program anyway.