... Er... how do you add entities in BL, again?
(I forgot. ;-; )

[EDIT]
Nvm
Figured it out by randomly pressing buttons. Eventually reached Ctrl+I and voila~ :3
[/EDIT]

That said, it seems a maximum of 128 maps is possible, so I should be able to fit in the planned areas, haha.

[EDIT]
Added all maps from the title screen up to the Sector 4 maps. Not finished, mind.
So we now have gems like "TH: Empty Throne" (map names abbreviate the Sector names) or "OC: Central Cave" or "AC: Night Queen's Room" or "TO: Entombed in Repose" (new!), or "SZ: Excalibur's Shrine" (kinda new?).

I have a basic layout in mind for Sector 6 (The Legendary Tree; may rename to The Mythical Tree, not sure which sounds better), but the layouts for the other Sectors (5, 7, 8 and 9) currently elude me.
Sector 6 gets a "TLT: Great Tree" map, haha.

So I'm just listening to that "Escape from the Pyramid" song from Wario Land 4 while trying to come up with the layouts, haha.

Any ideas are welcome. I'll tell the anti-aircraft weapons to hold their fire (and ice). :p
[/EDIT]