How to increase weight range avaliable when using Tabledrag? I have a tabledrag with more than 20 entries. Much more. Default weight range is from -10 to +10, so it can only order first 20 entries. Every additional one have weight of 10 and is ordered by secondary means like ID, name or whatever, and not the way user set it to. How can I expand that range? I can't see anything like that in drupal_add_tabledrag documentation.

My form definition is pretty much copy-paste from Examples for Developers.
If you are using a field of type "weight" like in the examples module you need to use the #delta attribute.