1. Once you upgrade to Motioney Agency, Login your Explaindio Member Account inside your Motioney Software and restart the software. Here is the support article which might help you to understand the Login process: How Can I Login My User On Motioney Software?
2. When done, simply check any of the Motioney Agency features if that has been activated in your Motioney Software.
Here is the easiest method:
On top right corner of your dashboard look for CREATE A FOLDER option to create client folders.
You should be able to create client folders using this CREATE A FOLDER option.