What is the feature you want to see?
Creating models for the GBH map.

• Room (color with NBT resize with item display entity scale)
• Door (double = resized with item display entity scale)
• Locked door (ditto)
• Twin stairs
• Left-turning stairs
• Right-turning stairs
• Ladder
• Player icon (bobbing up and down)

3DS Remake variants (top down)

• Room
• Zoom layer separator
• Door
• Locked door (normal, heart, club, diamond, spade)
• Locked door with key (normal, heart, club, diamond, spade)
• straight stairs (going up, going down, walkway)
• Side stairs (going up, going down)
• Ladder (going up, going down)
• Player icon (8-bit full, 8-bit in white bubble)

Rework:

• Force perspective and movement limitation
• Add another walkable layer for zoomed in map (rather than speed modification)
• Add animation for newly obtained key (fade in and sparkles)
• Add other-project's selection menu for map options (exit, floor up, floor down, zoom toggle)

3DS rework:

• 2 maps per floor
• Second map hidden by other model
• First map puts all player markers in center of the room they're in, and uses the white bubble model
• Add animation for newly obtained key (key dropping to locked door, changing its model)
• Add selection menu option "inspect" showing current position's room's name

Why would you like this feature?

• Updating the map would be faster, no more block updates.
• Allows putting the maps' rooms closer together, matching the game's map better.
• Allows for accurate GBH map door models
• Allows for adding 3DS Remake map behavior

Any alternatives you've considered?
Current implementation; it's limited to full scale sizing and not very usable for the 3DS Remake's perspective