I’ve got the paid version so I have arrange and the new nesting preview. But one way I’ve done this without using those features is to take each sketch model and export to DFX - usually by right clicking on the sketch and exporting to dfx. Then use deepnest.io to create a nest of all the dfx parts you want. Deepnest.io will then try to arrange the parts in the most efficient manner.
Sheetcam is also another way to do this, but it’s about $150 (10% off if you buy thru Langmuir store I think)…Sheetcam is more manual, but you can arrange the parts as you like. Both methods require you get the F360 model out of Fusion into other software by exporting the dfx files of the various components.
I’ve also seen people arrange parts manually in fusion as well…this video shows a guy doing a cut plan in the model and saving that as dfx - which may be what you want…
(17) Build a bird house with Fusion 360 Part 2 ( add adornments ) - YouTube