On 2013-02-26 21:24, Clem Cole wrote: That sounds right. I've forgotten many of these details. IIRC: DEC had something called "regions" that were bastardized by the screen handlers like termcap et al to do some of the same things. Horton (termcap and terminfo author) or Kent (terminal firmware author) might remember. Yeah. You can use the scroll region to do insert/delete lines. However, there is no help for insert/delete character. You just have to send it all on a VT100. Johnny Clem On Mon, Feb 25, 2013 at 5:30 PM, Johnny Billquist <bqt at softjar.se <mailto:bqt at softjar.se>> wrote: As far as I know, the VT100 do not do insert and delete at all. Those were added in the VT102...