That has worked perfectly, I’ll optimise my team this weekend then so that I can move around those 8 forwards with glitch to get the extra players on field.It must have moved fwd/mids into the mids to create those spaces.
Trade out a mid - any mid.
Hit the S button on a def/mid to put them in the mids, and create a space in the backs.
Hit the S button next to Seamus, it'll move him into the backs, and create a space in the forwards.
Hit the S button on Roberts or Davey or whoever you have on your mid bench with fwd DPP.
Trade in any random mid. Complete the trade.
Now, with another trade, trade the guy you just traded in, to the mid you traded out at the start of the process.
You'll get the trades back, but the players will stay rearranged as you desire.
Hope this helps
Then I can use that trick next week to set it back up how it was. Brilliant.