On HM it has this as an option when i look at session review for cash.
Now what im wondering is if at the end of a session im say down $10 but but my EV show +$10 does that mean i should have been in profit for that session and vice versar if my EV shows a - but im in profit

if ur down 10 and ev +10 than you got unlucky...

it basically means you made the correct decisions

Not true. Just because you got your money in good doesn't not mean that you made a correct decision, just like getting your money in bad doesn't mean that you made an incorrect decision. For example someone got TT aipf yesterday against my AK, he made a -EV decision, yet his poker tracker or whatever will say he made the correct decision since TT is a favourite over AK. Another example is when I got it allin with a set, but my opponent had a higher set, I clearly crush his range but because he showed up with a higher set it says that I deserved to lose.

The EV calculator in holdem manager does not take into account non-showdown pots and it does not take into account an opponents range, I dont even think it takes non allin pots into account. Basically EV graphs are almost always very inaccurate and to determine whether or not you are running bad you should review hands and look at stats, not look at an EV graph and say "this is what I should have won".