The ability to display all folders in the ‘Move to’ list is currently being requested under Enhancement #197684 Documents > File > File Cabinet > Move Files > Mark folder > Click the Dropdown lists in the Move To field : Unable to see the entire folder lists.
Below are the alternate solutions for the limitation:
Move Files/Folders individually.
I. To move the entire Folder:
Navigate to Documents > Files > File Cabinet
Edit the Folder
Under Sub-Folder of, select the destination Folder
Save
II. To move specific Files:
Navigate to Documents > Files > File Cabinet
Open the Folder where the File is located
Edit the File, under Folder
Note:
Large file sizes and many subfolders may affect performance and slow down processing time as you work with the files and folders. Avoid creating large numbers of subfolders wherever possible. If you attempt to move files to another folder using the Move To dropdown list, the number of displayed folders is limited to 20,000. Furthermore, you should not create more than 50,000 subfolders because it becomes increasingly difficult to organize files in a large number of subfolders.