Requested WoW macro

I have a macro that I've copied from another website:
#showtooltip Penance
/stopmacro [channeling]
/console Sound_EnableSFX 0
/use 13
/use 14
/castsequence [harm] , Smite; , Flash Heal
/cast Penance
/console Sound_EnableSFX 1
/script UIErrorsFrame:Clear()

This macro works fine but I would like to fine tune some of the conditions etc. When my character is focused on an enemy target I would like for it to do the usual smite and penance and then the extra Power Word Solace, but I would like to be able to flash heal and if possible penance on mouseover so that I dont have to change targets the whole time.

I hope this is full of enough detail about what I want?

Thank you