It is possible to drag left or right both green column separators, but the red separator can only be dragged to the left, making the editing of aliases very difficult: [image]

thanks for reporting, yes that one is busted. RH-96853 Alias page: cannot scale columns

Tools - Options - Aliases: impossible to expand the last column width

brian (Brian Gillespie) July 14, 2026, 9:40pm 4

RH-96853 is fixed in Rhino BETA

Topic		Replies	Views
Interface bug in Aliases menu? Serengeti (Rhino BETA) windows	3	98	July 24, 2026
Rhino 9 BETA - Alias settings window bug Serengeti (Rhino BETA) windows , mac	2	120	July 14, 2026
R8 layer column width adjustment bug? Rhino for Windows windows	4	251	May 10, 2024
Rhino7 toolbar pallette Rhino for Mac	2	407	February 13, 2021
Persistent column widths in layout sidebar (Mac) Rhino mac	2	80	December 11, 2024