Note grouping in 8/8

How do I get note grouping in 8/8 to beam like it’s 4/4? An 8/8 time signature directly groups 3+3+2, whereas a grouping of [4+4]/8 beams all the 8th notes in bar together.

I think your best bet is to actually use a 4/4 time signature in bar 2, hidden, with an 8/8 time signature in the first bar and the beaming fixed up manually for that first bar.