Trying to set up a save/load system. Kinda stuck as of now

Pulp
,
1

So, I'm trying to implement a save/load system based off of this example: Simple Save Point Example

I can get my game to properly save/load the player's location after interacting the "save_kiosk" sprites located in each room:

on interact do
	menu at 9,11,4,2 then
		option "Save" then
			continue_room = event.room
			continue_x = event.px
			continue_y = event.py
			store "continue_room"
			store "continue_x"
			store "continue_y"
			store
			say "Game saved!" at 6,12,11,1
		end
		option "Quit" then
			tell event.player to
				call "cancel"
			end
		end
	end
end

I'm trying to keep track of "playdate" items that have been collected/interacted with. As an example, I have the user interact with a sprite called "playdatePresent":

on interact do
	sound 27
	play "playdatePresentOpen" then
		gameMode = "paused"
		say "You unwrapped a present and found something."
		play "playdate_appear" then
			swap "playdate_disabled"
			wait 0.001 then
				gameMode = "playing"
				swap "playdate"
			end
		end
	end
end

The item "playdate" appears and then here's what I have so far with that:

on collect do
	say "You found a Playdate!"
	continue_room = event.room
	continue_x = event.x
	continue_y = event.y
	store "continue_room"
	store "continue_x"
	store "continue_y"
	store
	say "Game saved!" at 6,12,11,1
end

I'd also like to keep track of the sprite "playdatePresent_dud too":

on interact do
	sound 27
	play "playdatePresentOpen" then
		gameMode = "paused"
		say "You unwrapped a present. Turns out nothing was inside."
		swap "white"
		wait 0.001 then
			gameMode = "playing"
		end
	end
end

I'm assuming I would need something like this, right?:

continue_playdates = event.playdates
store  continue_playdates

"playdates" are how the sprite "computer_terminal" keeps track of playdates found/interacted with:

on interact do
	if playdates==0 then
		say "You really should get started on finding those missing Playdates"
	elseif playdates==1 then
		say "You've found 1 Playdate.\n\nThere are still plenty more to find.\n\nWhy don't you go take a look?"
	elseif playdates==8 then
		say "You've found all the Playdates!" then
			fin "Panic was relieved to have all of the missing Playdates returned to them.\n\nThanks for playing my {event.game}!\n\nThe End"
		end
	else
		say "You've found {playdates} Playdates.\n\nThere are still plenty more to find.\n\nWhy don't you go take a look?"
	end
end

My game is still very early and just some ideas as of now. If someone could look at my pulp json file and offer some guidance on how to keep track of items interacted with, that would be incredibly appreciated.

The Case of The Missing Playdates.json.zip (25.9 KB)

Thanks so much!