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Hi,

if you contact our support, and they are not able to help you right away you will get a ticket. Our support will then contact you whenever there are any changes to your ticket status. If that ticket gets converted to bug, you will also be notified by mail, when the bug is fixed. 

You can do that easily. Just contact our support.

Just as Kristian above said, you can already do that. Just turn on pro positioning, and you'll be able to set your element positions in vw and vh.

This feature is already available. You just need to add an element to your groups, and you'll be able to reuse them.

Please specify, where do you need this integration, and how would you like it to work like?