Following is a list of user defined variables. These map to the "u\[1-100\]=" in the tags. Each of these can have a user defined type.

| Enums ||
|---|---|
| `U1` |   |
| `U2` |   |
| `U3` |   |
| `U4` |   |
| `U5` |   |
| `U6` |   |
| `U7` |   |
| `U8` |   |
| `U9` |   |
| `U10` |   |
| `U11` |   |
| `U12` |   |
| `U13` |   |
| `U14` |   |
| `U15` |   |
| `U16` |   |
| `U17` |   |
| `U18` |   |
| `U19` |   |
| `U20` |   |
| `U21` |   |
| `U22` |   |
| `U23` |   |
| `U24` |   |
| `U25` |   |
| `U26` |   |
| `U27` |   |
| `U28` |   |
| `U29` |   |
| `U30` |   |
| `U31` |   |
| `U32` |   |
| `U33` |   |
| `U34` |   |
| `U35` |   |
| `U36` |   |
| `U37` |   |
| `U38` |   |
| `U39` |   |
| `U40` |   |
| `U41` |   |
| `U42` |   |
| `U43` |   |
| `U44` |   |
| `U45` |   |
| `U46` |   |
| `U47` |   |
| `U48` |   |
| `U49` |   |
| `U50` |   |
| `U51` |   |
| `U52` |   |
| `U53` |   |
| `U54` |   |
| `U55` |   |
| `U56` |   |
| `U57` |   |
| `U58` |   |
| `U59` |   |
| `U60` |   |
| `U61` |   |
| `U62` |   |
| `U63` |   |
| `U64` |   |
| `U65` |   |
| `U66` |   |
| `U67` |   |
| `U68` |   |
| `U69` |   |
| `U70` |   |
| `U71` |   |
| `U72` |   |
| `U73` |   |
| `U74` |   |
| `U75` |   |
| `U76` |   |
| `U77` |   |
| `U78` |   |
| `U79` |   |
| `U80` |   |
| `U81` |   |
| `U82` |   |
| `U83` |   |
| `U84` |   |
| `U85` |   |
| `U86` |   |
| `U87` |   |
| `U88` |   |
| `U89` |   |
| `U90` |   |
| `U91` |   |
| `U92` |   |
| `U93` |   |
| `U94` |   |
| `U95` |   |
| `U96` |   |
| `U97` |   |
| `U98` |   |
| `U99` |   |
| `U100` |   |