I noticed that whenever I enter contents to * Document -> Settings -> Local Layout * Document -> Settings -> Listings * Program Listings Inset -> Settings -> Advanced All the leading tabs are deleted by the validation. This disturbs the reading of this content. Is there any solution for this?
Another issue is that the tab stops are fairly far away from each other. I think that cutting them to two thirds is much better. I am using LyX 2.2.2 on Windows X. Thanks, Haim