Hi,

In first step to understand process you can see this video 

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Now you have see this video, If length are not listed yet , it is because our quick design libraries are limited up to 650mm per default,

But from menu Tools > Preferences in Facade Components, you can change the number to add news drawers, then edit name as your need

I have extract and update your fitting for you (Movento is equals Tandem slider), and joined here,

you can import the *XML and update diameters and depth of drilling

Now it stay to go to drawer sub-methods to add

then adjust each new length

and fitting links sub-method

Hope that’s helpful, Alex