How to organize/rename files/folders?

[OriNOVet]

If i right-click my songs or songs in a playlist, I can reorganize them. There is a field for naming conventions, where i can enter placeholders to rename the files and folders. Normally, I use a pattern like %albumartist/%album{/%disc}/{%track - }%title.%extension. This creates a album folder under the albumartist folder, followed by a disc number folder, if a disc number is set in the tags.

Is there some way to replace the placeholder {/%disc} with a placeholder, where disc is only created, when there is more than 1 disc (e.g. disc count > 1), instead of disc <> empty?