if this has not been resolved
download XSE for pokemon-google it
download Advance Map Pokemon
now open the rom first in Advance map, open pallet town, and find the 'Events' tab
if it does not show 3 tiles with a letter s on them, click the icon that looks like a person, upper left
it should show these tiles now
there are 2 tiles side by side with very similar offsets
click either one
now you see lines such saying like this at the top-mid of script
if 0x1 call 0x81656E0
where in my example it says 0x81656E0
higlight only the part after 0x8 (1656E0)
go to Edit>Find and Replace make sure the top text box says '1656E0' or whatever you highlighted
find next
it leads to this, close the box
#org 0x1656E0
applymovement MOVE_PLAYER 0x8165744
do the same with 165744
and this is at the very bottom
#org 0x165744
#raw 0x10 'Step Down (Normal)
#raw 0x10 'Step Down (Normal)
#raw 0x12 'Step Left (Normal)
#raw 0x12 'Step Left (Normal)
#raw 0x10 'Step Down (Normal)
#raw 0x10 'Step Down (Normal)
#raw 0x10 'Step Down (Normal)
#raw 0x10 'Step Down (Normal)
#raw 0x10 'Step Down (Normal)
#raw 0x10 'Step Down (Normal)
#raw 0x10 'Step Down (Normal)
#raw 0x10 'Step Down (Normal)
#raw 0x10 'Step Down (Normal)
#raw 0x10 'Step Down (Normal)
#raw 0x10 'Step Down (Normal)
#raw 0x13 'Step Right (Normal)
#raw 0x13 'Step Right (Normal)
#raw 0x13 'Step Right (Normal)
#raw 0x13 'Step Right (Normal)
#raw 0xFE 'End of Movements
now lets say you moved the entrance to the lab down 2 spaces, and 2 spaces to the right
find out which one of the movement scripts is for which you want to edit
find where it says #raw 0x13 'Step Right (Normal) add the same to the next 2 lines (do not delete anything
where it says #raw 0x10 'Step Down (Normal) do the same
remember
this is an example for if you moved the lab door down 2 spaces, and right 2 (and moved the warp tile to the same place)
test the game and keep trying until it is working
i hope this works out, its how i did it in my own game