You don't have to make a new custom section for each hover but you can make what I consider to be the actual list (because you want to be able to hover each section separately) within a single custom section wrapper. You would use [
*] to separate them.
Freaxy's Guide to Custom Sections should cover the appropriate explanations. Pretty much, instead of having;
[lis
t=1][u
rl=www.youtube.com]randomtext[/u
rl][/li
st]
[lis
t=1][lis
t=1][u
rl=www.google.com]randomtext2[/u
rl][/li
st][/li
st]
and the selectors being
#about ol ~ RandomText
#about ol ol ~ RandomText2
You would use
[lis
t=1]
[
*][u
rl=www.youtube.com]randomtext[/u
rl]
[
*][u
rl=www.google.com]randomtext2[/u
rl]
[/l
ist]
and the selectors would be
#about ol li ~ RandomText
#about ol li+li ~ RandomText2