Hi again,
I hear your frustration.
While I'm not sure what version of BIAB you have, the thoughts below might help.
1. Bar lyrics have their own individual editing tools that are accessed by right-clicking on the bar lyrics layer. There are two different tool menus available. (See image 1, below.)
2. When entering lyrics...
(a) First copy or type them into the "Lyric Document Window" -- found under "Edit | Lyrics". This will create lyrics in text format. They will also save when you save the song and so be easily accessed at any future time.
(b) Make sure that each bar of lyrics is on its own line.
(c) Drag the mouse across the lyrics your want to copy and paste to select them. Press CTRL+C to to copy them. (Multiple lines can be copied.)
(d) Now right-click on the bar lyric layer at the bar you want to start lyric entry and select PASTE from the menu.
(e) The lyrics will be entered. It's also possible to enter multiple consecutive bars of lyrics this way. (See image 2 below.)
3. Lastly, if you have BIAB 2019. Go to Help and search for Bar Based Lyric as shown in image 3 below. This will take you to a great article on some of the tricks with using the bar-based lyric layer.
Regards,
Noel
Description: IMAGE 1... Bar lyric layer editing tools
Description: IMAGE 2... Entering bar based lyrics using the Lyric Document Window.
Description: IMAGE 3... Bar-based lyrics Help.