There are more things these weakauras can do but it might be a pain to understand/read/care; this is what I got sidetracked doing
It is possible to tell the 4th-row aura to look for all cooldowns (in your spellbook) or to exclude/whitelist some; for example
You can tell it to find all spells with cooldowns in your spellbook except for Life Cocoon; likewise, you can tell it to only find Life Cocoon
There also are two modes this aura can appear in, one sorts the spells by their cooldown (so a 30s spell would be first, a 1 min spell second and so on) and the other sorts them by their active cooldown (so ready spells are always first and last are spells on cooldown sorted by their remaining cooldown)

I got carried away designing this and I think there would be no point withholding it from you so, feature-full it is

To begin, it has two modes of display (as mentioned previously) and this is how you toggle between them (ran in the chat of course)

/run WeakAuras.ScanEvents("COOLDOWN_MANAGER_SWITCH_MODES")

I also mentioned it being able to switch between whitelisted and blacklisted spells and this is how that's done (currently there is no way to tell what mode it's in other than looking at the actual aura and seeing for yourself (There is no output other than 0 and 1))

/run WeakAuras.ScanEvents("COOLDOWN_MANAGER_SWITCH_SCAN_MODES")

What the above command essentially does is tells the aura to either look for the spells we want or those we don't want; once it is in either mode we also need to tell it what to look for

/run WeakAuras.ScanEvents("PLAYER_SPELLBOOK_EXCLUSION_ADD", "<SPELL NAME OR ID>")
/run WeakAuras.ScanEvents("PLAYER_SPELLBOOK_EXCLUSION_REMOVE", "<SPELL NAME OR ID>")
/run WeakAuras.ScanEvents("PLAYER_SPELLBOOK_WHITELIST_ADD", "<SPELL NAME OR ID>")
/run WeakAuras.ScanEvents("PLAYER_SPELLBOOK_WHITELIST_REMOVE", "<SPELL NAME OR ID>")

You can use these commands to either whitelist or blacklist spells using their name or their ID; if you wanted the aura to NOT show Chi Wave you would do 

/run WeakAuras.ScanEvents("PLAYER_SPELLBOOK_EXCLUSION_ADD", "Chi Wave")

And if you wanted it to show Chi Wave again you would do 

/run WeakAuras.ScanEvents("PLAYER_SPELLBOOK_EXCLUSION_REMOVE", "Chi Wave")

Few things to note here are if you want to use spell names you must place them in quotation marks however if you want to use ID's you may not use quotation marks; so an ID example would be and also if the aura is in Whitelisted mode (showing only the spells you told it to) the exclusion table/list will have no effect on it and adding or removing spells to it will not change the behavior, similarly if the aura is in Exclusion/Blacklist mode the whitelisted list will have no effect on it

/run WeakAuras.ScanEvents("PLAYER_SPELLBOOK_EXCLUSION_REMOVE", 115008)

And finally to check what spells are blacklisted or whitelisted you would do

/run WeakAuras.ScanEvents("PLAYER_SPELLBOOK_EXCLUSION_LIST")
/run WeakAuras.ScanEvents("PLAYER_SPELLBOOK_WHITELIST_LIST")

Why had I done this? I do not know