How to customize the forms

I’m just new here, and we are using this software. May I ask how to customize the documents here?

Thank you!

read this guide Manager Cloud

Support

Product
Manager 17.11.41

Activation key
288 - 707 - 288

Website

Guides
www.manager.io/guides

Forum
http://forum.manager.io

this is the version we downloaded. we tried already in Theme portion but no theme is available?

Thank you I hope you can help me.

You need to update as the themes have been relocated since your version.

make sure you download the program and updates only from the official website.
the latest version is 18.1.0
https://www.manager.io/desktop/download/