Hi particleboy,
Importing models from Sketchup into iClone can present many problems, poly count being one of the most difficult.
One way to reduce the poly/face count is to take the model into 3dxchange, select Tools/Exclude SKP Back Faces. This will reduce the number of faces by half.
Doing this can however present you with a whole new set of problems. If the model was produced by a user who didn't take care which face was front and back - meaning it was produced only for use in Sketchup, then you will find a lot of missing parts when you use this option.
One way around this is to find the "invisible" faces and make them 2 Sided in 3dxchange. This will keep the face count down, while still retaining some detail in the model.
As far as scale is concerned, the "dummy" in 3dxchange, or the grid, will give you an idea of how large/small your imported model will be.
If you can't find an imported model in the iClone stage then just select the "Home" button at the top, this will take you directly to the selected object.
Hope this helps some.
Gerry
System: Win 10 Pro (21H2), Asus X99-E WS, CPU i7-5930K -3,5 GHz, 32 GB DDR4 2666-16 RAM, NVidia GTX 1080 Ti GPU - 11 GB VRAM(Driver Studio-536.99), Samsung 850 Pro 512 GB SSD, 6 TB HD storage.