Ability to attach documents in the gallery

To add creative elements this option is required.
Every time I post something in the gallery can not add file creation because I do not want to add external links.

Hello,

The gallery feature isn't active on the support forum. If this isn't what you mean could you clarify for me?

I want attach a zip file with the PSD, of creation.

Creation File: I can't attach documents.

Exemple: https://help.forumotion.com/t98649-logo-v1

The attachment feature you mean. Right now this feature isn't activated for users. If you need to attach an image you can use an external host.