Le 04/02/2021 à 01:15, V K a écrit :

Lyx is approaching 2.4 and I want to draw attention of devs to the outline pane 
functionality and problem of the huge notes. Maybe some of these issues can be 
fixed relatively easy and quickly till the new release.

These issues probably deserve their own tickets on trac (either grouped or separated). Concerning the performace issue, it is a known problem which is generally not as bad, but it will be difficult to fix before 2.4.0 IMO. I would appreciate to have a file to play with (you may want to use buffer-anonymize on it).


1. "Keep" tikbox in the outline pane is working inconsistently. Let's say, I opened all 
navigation tree elements by sliding bottom slider of the outline pane to the right and ticked 
"keep". It's keeping tree while I am navigating through the document, but after going to 
another document and coming back I see collapsed tree (ticbox is still ticked). This situation is 
particularly discomfortable when working with master-child documents.

2. Navigation tree in the outline pane collapses after ctrl+z (undoing) while 
"keep" is still ticked.

3. Situation with notes and footnotes selection in outline. I am using Lyx notes, greyedout and 
comments severely while preparing texts. And it is very common situation when I want to go through 
all or some notes to correct text, delete notes. So I open notes list in the outline, search note I 
need, go to text to correct it and... all notes disapper in the outline and I see navigation tree 
there. So I must open notes list anew, select next note and so on. Ticking "keep" tikbox 
do nothing. Maybe such behaviour is intentional (to search only one note and automatically go back 
to navigation tree), but maybe "tickbox" can be used to keep notes list?

4. This isn't related to outline pane. My notes can be huge (to hide parts of 
the text temporary) and navigating in such huge notes is painfully slow, CPU 
usage rises dramatically (99% of one of the cores of the CPU). Such slowness 
presents only when huge note is opened and is visible in Lyx work area. 
Slowness disappears after collapsing note or after scrolling till it disappears 
from work area. The same problem is with big branches. Such slow was note with 
75 000 characters (incl. spaces), more smaller notes and a lot of citations in 

Such situation is with master (bit dated – Built from git commit hash 9e1db659) 
and with stable too, as I remember.

Thank you for your hard work – it is much more pleasant to work with Lyx office 
than with traditional offices.


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