"End second phase" prompt for flicker effects
It would be very useful if the game included a prompt that you would like to go to your opponents end-step at the end of their second main phase. Specifically this is important for cards that exile a permanent from the battlefield, then bring it back at the next end step. Two cards of note are the channel ability of Touch the Spirit Realm and Swift Spiral, the adventure mode of Twining Twins.
Currently, without full control mode on, the game will simply pass your priority at the end of the opponents second main phase into their end step. If you are to play either of these cards at that point the exiled creature will not re-enter the battlefield until the end step on YOUR turn. The game should recognise this and set a stop automatically at the end of the opponents second main phase to give you the chance to use one of these spells to exile a creature and then bring the creature back into the battlefield at the beginning of THEIR end step.
You have demonstrated that certain prompts can be coded in only for particular cards (e.g. the upkeep stop implemented only if they have Sheoldred of the Apocalypse in the battlefield) and this would be a great quality of life addition as it does become quite draining having to remember to put a stop in their second main phase every turn, inevitably forgetting one time, and being forced into game-losing positions because the game has automatically passed your priority for you.
Alternatively it could be a great option to include in the settings a toggle button for if you want a stop at the end of their main phase all the time. There is a stop at the end of the first main phase (before combat) which is extremely useful and I would likely toggle this on to allow me to hold my priority at the end of the second main phase without having to have all the full control stops which are not necessary most of the time.
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