Anchoring a cantilever on thin composite slab edge

[SSM_27]

Hello fellow eng. As the title suggests I have to design a connection of a cantilever beam to a composite slab (slab is 100mm in total). The cantilever supports a platform on the outside of a building (used for maintenance and cleaning) as well as an exterior wind-screen made of perforated metal (steel) sheets. The main structure is already in place and it was not in my scope.
So my question is: can I fix the cantilever directly on top of the slab with through bolts and plates / profiles on the underside of the slab? Please keep in mind that the steel deck orientation varies and is always perpendicular to the secondary beams, not the slab edge (the cantilever is always perpend to the slab edge). Also I’m not sure how the steel deck is actually installed onsite.
Is this a viable option? I imagine the bolts in shear could be subjected to bending if positioned between the ribs. The only other option I can see is to lower the cantilever and weld/bolt it to the primary beam. This complicates things, obviously.
Kindly see the attached pdf for more details. Any advice/opinion is appreciated. Thank you in advance.

 

[KootK]

For lives at stake at height, I'd want be connecting to the steel framing and not the deck slab edge.