FireLance
Legend
You're welcome.Before hand, Thank you Firelance that give's me allot to work with and gives more information than the link!!!

Usually, you can take a feat only once, unless the feat says you can take it more than once. Since the Novice Power, Acolyte Power and Adept Power feats don't say this, you can take each of them only once.Actually I think I found a site that explains it pretty good : The Core Mechanic: 4E Multiclassing : How To but he asks a question in here he's not sure of. It looks like at level 4,8, and 10, is when you get the swap option, but he asks can you take the swap options more than once per type? Like 2 encounter swaps, or 2 daily swaps.
When you take a power swap feat, you lose a power from your original class (in this case, cleric) and take a power of the same level or lower from your multiclass class (in this case, druid). Any time you level up, you can retrain and change one choice you have previously made, such as a choice of power or a choice of feat. So, if you want your original power back, any time you level up, you can retrain the power swap feat to something else.But i'm not clear on how the swap works? Because from what i'm understanding is lets say you take the EncounterExampleA, then later you take the swap encounter feat, i'm understanding this means that at that point I can swap the EncounterExampleA for a different druid encounter, or a cleric encounter (cleric primary), but what about swapping back? Can this be done at a certian time or is it a 1 time swap?
Alternatively, you can retain the power swap feat but swap a power of a different level. For example, at 4th level, you swapped a 3rd-level cleric encounter attack power for a 3rd-level druid encounter attack power. At 5th level, you can swap a 1st-level cleric encounter attack power for a 1st-level druid encounter attack power instead. You lose the 3rd-level druid encounter attack power and regain the 3rd-level cleric encounter attack power. This is an extra benefit of the power swap feats and does not count as retraining. You can do this in addition to retraining another character choice, although if you still want a druid power, you shouldn't retrain the power swap feat!
Otherwise, if you want to change the druid power you took previously to another druid power, you can also do so any time you level up. For example, you could change a 3rd-level druid power for another 3rd-level druid power. Again, this does not count as retraining.
If you have gained a higher-level cleric power after levelling up, you may also immediately swap that for a druid power of the same level or lower and regain your previous cleric power. Let's say you previously swapped a 3rd-level cleric encounter attack power for a 3rd-level druid encounter attack power. When you reach 7th level and gain a new 7th-level cleric encounter attack power, you may swap that for a 7th-level druid encounter attack power. If you do so, you lose your 3rd-level druid encounter attack power and get back your 3rd-level cleric encounter attack power. As with the last two cases, this does not count as retraining.