To create a MCS Catalog for the Xendesktop use the Studio console and launch the wizard, but prior to that is necessary to have a windows client installed domain joined and with VDA 7.15 inside.
My choice was a windows 10 1709 release
As I want to create some windows 10 machines I select the Desktop OS and press Next
Select the 1st option for the catalog user and the way that machines will be deployed by Citrix Machine Creation Services the resources from the drop down menu and next
To give a fresh experience at each logon the 1st option with random allocation I choose and Next
I select my window 10 previous installed as master image and proceed further
Select the appropriate NIC
give a number of machine to create. Select the amount of memory that will be allocate to the VMs, a cache for each will be a good choice in my case 400 MB from the total allocated to each machine.
I create new accounts and select the OU where computers account should reside. give an appropriate name for the naming convention
I left the default choice for the Scopes
A short summary will appear. A name for the catalog is need it a
And this is all now you’ll have a bunch of MCS machine in your studio console.