Assign 2 prefixes to a thread at same time

[stator]

How to use 2 prefixes at the same time to certain forum threads :confused:

N.B. The 2 prefixes not belong to the same prefix group

[Paul M]

You cant.

[stator]

Thank you for replying

I know I can't, therefore; I asked for a modification to enable me to do that.

or you means that no modification can be made :confused:

[stator]

any suggestion ?