I present to your attention the YTYP Halper program. This program will help speed up the mapping of GTA 5. With this program you can significantly save your time with getting Boundary Box values for models.
To get the values, you need to choose where you want to insert the values: in OpenIV or CodeWalker. Then, select one or more ODR files. After that, the program will display the necessary lines for each file and you can copy any fragment from what the program has displayed.
In addition, the program will make it easier to enter coordinates for portals. Now, there is no need to manually correct commas to points in coordinates, the program will do everything automatically. If any fields for coordinates are left blank — they will be set to zero. When you are finished specifying values, click one of the two buttons below. After that, the specified values will be copied to the clipboard.