Well, you have two options:
(1) wait for Pacman to write a scene for it in that topic
(2) have it call a common event instead and show the picture in the common event.
If the latter, you would simply make a common event that should look essentially like (Note: if already using Picture Label 1 to show something else, use a different label):
@>
Show Picture: 1, IGMap@>
Loop @>
Set Move Route: Player :
$>Wait: 6 Frames @>
Wait: 6 frames @>
Conditional Branch: Button B is pressed @>
Break Loop @>
:
Branch End @>
Conditional Branch: Button C is pressed @>
Break Loop @>
:
Branch End @>
:
Repeat AboveErase Picture: 1Open Menu Scene@>
Then, in the script, just follow the instructions to add a common event call. In other words, do this (assuming it has not already been edited in any way. If it has, you need to pic an ID for the new one that isn't already used -- again, as per the instructions):
0 => ["Vocab::item", 144, "$game_party.members.empty?", false, Scene_Item],
1 => ["Vocab::skill", 128, "$game_party.members.empty?", true, Scene_Skill],
2 => ["Vocab::equip", 51, "$game_party.members.empty?", true, Scene_Equip],
3 => ["Vocab::status", 137, "$game_party.members.empty?", true, Scene_Status],
4 => ["Vocab::save", 133, "$game_system.save_disabled", false, Scene_File,
"true, false, false"],
5 => ["Vocab::game_end", 179, -1, false, Scene_End]
And you would change it to this:
0 => ["Vocab::item", 144, "$game_party.members.empty?", false, Scene_Item],
1 => ["Vocab::skill", 128, "$game_party.members.empty?", true, Scene_Skill],
2 => ["Vocab::equip", 51, "$game_party.members.empty?", true, Scene_Equip],
3 => ["Vocab::status", 137, "$game_party.members.empty?", true, Scene_Status],
4 => ["Vocab::save", 133, "$game_system.save_disabled", false, Scene_File,
"true, false, false"],
5 => ["Vocab::game_end", 179, -1, false, Scene_End],
6 => ["Map", 153, -1, false, X]
(NOTE how I added that comma after the 5 => line)
The X before the bracket you would replace with the ID of the common event you made. IE, if you made the common event in the first slot of the common event tab, that line would be:
6 => ["Map", 153, -1, false, 1]
If in the second:
6 => ["Map", 153, -1, false, 2]
ETC...
Note that this method would stop the player from moving but other events on the map would still be active. If you wanted to prevent that, wait for Pacman to finish the script you requested.