Welcome! Great to have you - can't wait to see pictures since 360 video is usually incredible.
For HABs, the parachute usually deploys passively. If attached correctly, the balloon is moving slow enough that it doesn't impede the ascent - but when the balloon starts to fall, the air resistance will cause the parachute to open up and begin slowing the descent.
Please see the tutorial for some advice on how to attach it and let us know what other questions you have.