The main tool for the management of Meta UI functionality inside Business Central is the Meta UI Administration page.

You can easily access it from the Tell me tool:

Note:

There is a possibility to add Meta UI Administration to your Role Center navigation menu. Refer to How to add Meta UI Administration bookmark to my Role Center? 

Also, check out the in-built tips to get an idea of how Meta UI works:

As a next step, click to find out more about Meta UI Administration page sections:

Configurations

Administration (Working with Packages)

Assisted Setup

General (Active companies, Pages, Meta UI Tenant Administrators, Meta UI User Groups)

Setup (Permissions, ID Range)

Links (Admin Portal, Partner Zone)