We got several pieces of equipment we wanna equip at once. We want the ability to hover in mid air to construct crap at odd angles and we want the ability to do that for reasonable lengths of time(negotiable). In factorio, you got modular armor or power armor, which allowed you to hold more and more equipment, including stuff like blade runners, and night vision, a personal energy shield, and a miniature fusion reactor. If we had that, i think we could justify flying for like... 2 minutes at a time? As well as provide the opportunity to equip the equivalent of the jetpack, the gas mask, the blade runners and maybe even the hazmat suit, all at the same time. It would be a super endgame achievement. Basically a quality of life improvement for those who have entered the "purely creative" part of the game, and perhaps a progression from a basic exosuit which you develop over time from just helping you, to becoming that power armor which lets you build at your leisure.
And by the way, if you are cooking this up, i understand it might only be available in tier 8 or beyond.