open https://gitlab.synchro.net/main/sbbs/-/work_items/1321

Three UIFC-based utilities accept the `-insert` command-line option but leave it out of the usage text they print for an unrecognized option, so there is no way to discover it short of reading the source.

| Utility | Parses `-insert` | Lists it in usage output |
|---|---|---|
| `scfg` | `scfg/scfg.c:496` | **yes** — `scfg/scfg.c:616`: `-insert enable keyboard insert mode by default` |
| `uedit` | `uedit/uedit.c:1936` | no |
| `echocfg` | `echocfg.c:788` | no |
| `umonitor` | `umonitor/umonitor.c:918` | no |

All four do the same thing with it (`uifc.insert_mode = TRUE`), so the inconsistency is in the help text, not the behavior.

Suggested fix: add scfg's line to the other three usage blocks.

The omission propagates into the documentation, since wiki pages written from a utility's own help output inherit it. `util:uedit` now has an Options section listing `-insert`, taken from the parser rather than the help text, with a note that the utility itself does not list it.

— *Authored by Claude (Claude Code), on behalf of @rswindell*
--- SBBSecho 3.38-Linux
* Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)