How to get the reluctant child in from play?

[Confrontayshunme]

EYFS TA here. I am struggling with two boys who can't stop playing, and I need some new strategies to try and get them inside for lunch or inputs. They both have some lagging social skills and attachment trauma

wouso I feel this is the issue, but with staff thin on the ground, I can't just stay on our playing field while they run themselves down, and they are too big and strong to try to move.

One came up with a solution with me and has done well for a few days, but I am already feeling like he feels the need to bolt right as we are getting inside. Last year in our nursery, his key worker said the strategy constantly changed, but I am already running out of ideas!

Would love some advice for those of you who have been able to help the bolters!

Could they have some little job they like to do like watering a plant with lots of praise or holding the door for everyone else . Make a big deal of the task! Something they are in charge of.
Could they have a sticker chart they fill in when they come in straight away. So you have the stickers in your pocket and show them saying Come on let's fill our stickers in quickly. Some favourite activity at the end of 10 stickers eg l found playing a game on computer a welcome treat. Also the stickers need to be attractive eg pirates/ dinosaurs.
Some things that worked for me.

Take out a piece of orange card onto the playground and hold it up to them when they’ve got 5 minutes of playtime left.
Explain to them that when the whistle goes, you’re going to start a sand timer (maybe 1 minute) and if they can reach you by the time it runs out, they get a sticker. 10 stickers = extra playtime perhaps?
Make it clear that when they come in off the playtime, it doesn’t mean that the fun is over. Whatever they’re about to do next could also be fun e.g. painting, water play, story time etc…
If you think they’d understand, you could even time how long they stay outside for after the whistle has gone, and take that time off from their next playtime e.g. if it takes them 6 minutes extra after everyone else to come in from morning play, send them outside to lunch play 6 minutes later.

Give them a warning and a visual countdown before their time's up (sand timer or iPad) then have a
NOW. NEXT. LATER

board with pictures on. It should have a mixture of things that will motivate them and things that you want them to do.

Now: story time
Next: snack time
Later: maths

Decide with them before hand what's going to happen and how their day will go so there's no surprises.

The issue with transition inside may be uncertainty (what's happening next), lack of warning, lack of fun, or it maybe that there is something bothering them about being inside (noise/crowd etc.). I speak as the parent of a child who appears to just need warning/certainty/more fun but actually hates crowds and noise.
Before trying a dozen different things, it's worth delving in to this via observation or talking to them, and working out how to support them inside (which may be allowing once round the playground if it gets too much inside, or a quiet corner where others know not to disturb them).

I get irrationally wound up by this type of thread where people take the time to offer really good advice and the op @Confrontayshunme CBA to pop back and say "thanks"
😆 probably should save this for one of the "Mumsnet pet hates" threads.

Sorry if I didn't return! I am really grateful for the ideas, and I am already trying a couple of things. One of the boys in question decided that instead of coming in, he would start coughing so hard he makes himself vomit, which is great fun. And it is only their first full week! 😫