enter a trade via ProOrder but manually set my TP once the trade is live.
Yes I do similar often … when the trade is Live (via Auto-System) then go into the IG Platform and make any adjustment you wish to Limits and Stops, but as soon as you click on ‘confirm’ the Auto-Trade ceases to be an Auto-Trade … you have now made it into a Manual Trade from hereon.
Try out above on Demo first so you don’t lose money by making the wrong setting etc.
Hope that is clear?