tag @e[type=marker,tag=room_exit,tag=choice_7] remove choice_7
tag @s add choice_7_this
summon item_display ~ ~2 ~ {billboard:"fixed",CustomNameVisible:1b,Tags:["room_marker","room_particle"],CustomName:'{"bold":true,"color":"red","text":"Healing"}',item:{id:"minecraft:glistering_melon_slice",count:1},glow_color_override:16711718,Glowing:1b,teleport_duration:1,transformation:{left_rotation:[0f,0f,0f,1f],right_rotation:[0f,0f,0f,1f],translation:[0f,-0.25f,0f],scale:[1f,1f,1f]}}