this is what I see in changelog file
Code:
==01/26/2011==
Derision: Support for door opentype 57 (instant intra-zone portals which don't require the client to click, such as in the bazaar).
Note: For opentype 57, the client automatically sends the click when the player moves onto the portal.
Optional SQL, to set the bazaar portal discs to type 57 (they are type 58 in the PEQ database, but collects show they should be type 57):
update doors set opentype = 57 where zone = 'bazaar' and name = 'PORTAL_DISC';
so start with placing a new door flat on the ground, set it to type 57, then stand on it, and try entering trader mode, and see what happens.