Magic spell and skill when are they activated?

I am playing a mage. and have often no clue if my char is using the spell or just going to attack with melee.

Can you change the colour of the round counter according to what skill someone is using (Melee, Skill, Magic).

And if you chance your skill during that time. That if it is a 1 round skill, the counter is not reseted to zero.
eg. Your are trying to cast a spell. and you are not sure if it has taken the spell. and press the skill again. The counter is reseted.

Also if you are using magic the auto attack of the pet is stopped.