Another great easy way to do tables is to take advantage of the vertical table system Prime32 installed for everyone to make tables easier for them. You don't even have to type out the numbers for advancement, or even recall if average BAB gets +6/+1 or +7/+2 at level 9. It's copypasta, choosing your BAB progression, Fort progression, etc.
And for Class Features, as noted you write the table vertical, so it's pretty easy. Like you can write
Cloak of Shadow
Silent Illusion
Shadow Illusion
Extended Illusion
Powerful Shadow Magic
Codified it looks like this.
[row][cell]Cloak of Shadow[/cell][/row]
[row][cell]Silent Illusion[/cell][/row]
[row][cell]Shadow Illusion[/cell][/row]
[row][cell]Extended Illusion[/cell][/row]
[row][cell]Powerful Shadow Magic[/cell][/row]
And that's it outside of the copypasta you'll toss in before and after it when you're ready to post.
This is because the mod allows you to nicely stack equal length tables side by side with no display spacers. And needless to say, being able to see just the Class Features together in a line help you correct any errors later on, like when you are editing it later for some balance corrections. Most everything you need to copy and paste is laid out for you
in another one of my posts, and I could also write up some Spell/Maneuver progressions if needed.