Does not work with commands that use placeholders

[ldealmei]

First, many thanks for keeping this project alive. It's a key part of my professional workflow!

I am trying to add the following command (as I would write in a terminal):

pdfseparate myfile.pdf %d-myfile.pdf

which creates 0-myfile.pdf, 1-myfile.pdf, ... for each page of the original file.

As you can see pdfseparate requires %d to execute otherwise it fails and complains : must contain '%d' (or any variant respecting printf format) if more than one page should be extracted, in order to print the page number

I'm looking for a way to run this in actions-for-nautilus.
pdfseparate %F %d-myfile.pdf does not work because both %F and %d are changed.

I have not managed to write this command in actions-for-nautilus that makes it run successfully.

I need to be able to use %F as a placeholder but keep %d as is. How can I escape a specific part of the command?