Utilizing /click to run concurrent castsequences

[Toned]

Here is a leet shaman setup.

== Macro 1 ==
/click MultiBarLeftButton7
/click MultiBarLeftButton8
/click MultiBarLeftButton9

== Macro 2 == -- Reset = Target is annoying on trash may want to change reset=combat or reset=combat/alt if you want to just hold alt to reset your macro.
/assist focus
/castsequence reset=target Flame Shock,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

== Macro 3 == -- Reset = Target is annoying on trash may want to change reset=combat or reset=combat/alt if you want to just hold alt to reset your macro.
/assist focus
/castsequence reset=target Lava Burst,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

== Macro 4 ==

/assist focus
/castsequence reset=target Lightning Bolt, Lightning Bolt, Chain lightning, lightning boLT
/cast Lightning Bolt

Update: After testing I changed macro 4 to be /cast Lightning Bolt... out dpses Chain Lightning (unless there are multiple mobs) You could have a 2nd click macro like this:

/click MultiBarLeftButton7
/click MultiBarLeftButton8
/click MultiBarLeftButton10 Button 10 has the /castsequence reset=target Lightning Bolt, Lightning Bolt, Chain lightning Macro for multiple mobs.