While in Layer 1 or Layer 2 editing mode, open the manual object insertion window either by pressing Insert, or via the menu: Edit > Insert manual....
The custom midway object is inserted into your ROM as 2D and this value goes in the Command field of this dialog.
To change where Mario will respawn after collecting this midway, you will set a 4-digit value in the Extension Field. The value put here will dictate the entrance type as well as either the level number or a secondary entrance number where Mario will respawn.
0000-1FFF respawn at secondary entrance, this is just a valid 4-digit secondary entrance number (ranges 0000-1FFF)2000-3FFF respawn at secondary entrance with water, the value is 2000 + secondary entrance number.*4000-41FF respawn at main entrance, 4000 + 3-digit level number (ranges 000-1FF).5000-51FF respawn at midway entrance, 5000 + level number.Keep in mind some values will need leading zeroes to work correctly, e.g. respawning at secondary entrance 12C would be 012C and not 12C.
Note: some of these settings can be used to make a midway respawn a player in any place in the game not just within the same level or connected sublevels.
Once inserted, it will appear in Lunar Magic as a green square, but will appear as the normal Midway Tape object in-game.
The retry system has a per-level configuration setting for midways (see Local settings - %checkpoint for details), which sets the behavior of midways bars and level entrances in the specified sublevel.
Using the %checkpoint instruction in settings_local.asm you can set the midway behaviour, for each and every sublevel, with the one of following values:
0: Vanilla behaviour. The midway bar in the corresponding sublevel will lead to the midway entrance of the main level.1: The midway bar in a given sublevel will lead to the midway entrance of this same sublevel (instead of the to main level).2: Any entrance into a sublevel, from an exit-enabled object in another level, will save as a checkpoint and respawning will lead to the corresponding entrance where the checkpoint was gathered. This does not change midway bar behaviour.3: This option enables both the effects of 1 (midway bar) and 2 (level entrances).Note: this setting can be used in conjunction with the midway objects detailed above.
