| Identifier | Caption | Active? |
| serial |
Generate serial letters. |
True |
| bpchem |
Typeset chemical names, formulae, etc. |
True |
| miller |
Typeset miller indices. |
True |
| delimtxt |
Read and parse text tables. |
True |
| dnaseq |
Format DNA base sequences. |
True |
| gradback |
Gradient backgrounds for dvips output. |
True |