Sorry for the slow reply; I didn't start playing for a week or two after you mentioned this.
I have one account, and am picking up a second. I think having a pocket healer would be great for Signet farming (Or an AoE DPSer while I healtank)
Right now I'm in the process of copying my TSW directory. Only kind of walking through the whole ISBoxer setup while I wait for tonight's ultra-slow patch to download.

But if I was to, for instance, run my main as a healtank could lay out like this:

Actives

1. (Fist Tier 2) - Cauterize
2. (Fist Tier 2) - Surgical Steel
3. (Fist Tier 2) - Empathy
4. (Fist Tier 2) - Creature Comfort
5. (Turbulence) - Stoicism {E}
6. (Chaos Tier 1) - Illusion
7. (Chaos Tier 2) - Smoke and Mirrors

Passives

1. (Fist Tier 2) - Hot Iron
2. (Fist Tier 2) - Making Amends
3. (Fist Tier 2) - Healing Sparks
4. (Fist Tier 2) - Empowerment {E}
5. (Turbulence) - Agitator
6. (Chaos Tier 2) - Contradiction
7. (Fist Tier 2) - Glimmer of Hope
Then run my (brand new) alt as DPS with like blade/chaos or blade/AR, for the crazy AoE. I could line up buttons 1-4 with 1 (and maybe 2) Being blade builders, and 3/4 being blade/other consumers. 5/6/7 would probably be Impairs or something (since they'll coincide with the healtank's 'oh shit' powers).

If not that? Then I could always just have have buttons 1-7 spam buttons 1-3 to the alt screen, if I really wanted to just run a pocket healer. Looking forward to trying this, but I'm known for failing at the simplest of ISBoxer tasks (It didn't take me a whole hour to figure out how to add TSW as a game to the pulldowns in the wizard)