My understanding is that IFC components can be customised, so for example for a window component one can edit the mullions, frame size, glazing opacity etc etc.
This is better than using the scale tool, as if you were to use that all the sub-components would be scaled at the same time. AIUI.
I have imported this component: https://www.nationalbimlibrary.com/internorm-windows-uk-ltd/hf-210-timber-and-aluminium-window-home-pure from an IFC file.
However I can’t find anywhere to alter the individual components. I can see the attributes referred to on the webpage under Component Options but, for example, altering the width doesn’t alter the width of the window in the model (and besides, I don’t see anything like glazing size).
Apologies if this is more BIM support than SU support…