There are various ways to collect pollen. The male must always be isolated so you can control what females are pollinated etc...
Considering the micro grow concept you could Remove it's apical mainstem, submerge the branch in a glass of water and flower under 12/12. Or even better two 2 Liter bottles fit into one another so the bottom catches pollen as it falls. Save a small sack of pollen, shake it into a zip lock bag, cover a flowering female branch, shake, wait 2 hours, shake and remove. The female branch will then produce your new seeds.