[DT1] "Main index"

[newmodder]

hi all. im trying to make some new floor tiles using TileMaker 2.5. When creating the DT1, the program requires a number (from 0 to 63) that is known as the "Main index"

I would just like to know what the main index is and how to determine the number of it on a specific map

I know it has something to do with the number of tiles, i just can't figure out what that association is.

help very much appreciated,
newmodder

[onyx]

You can read here - the paragraph about Orientation, Main Index and Sub-index.