Public data repositories: Multiple figures as one reference my current manuscript is combining work in multiple research fields, so naturally it's difficult to find good journals to submit it to.

At the moment I'm down to one journal where I would really like to submit it, however, the author's instructions of the journal make it difficult to wrap all my data into it.

I'm only allowed 2 tables and 3 figures and all supplemental material needs to be uploaded to public data repositories like FigShare. There is another table and 3 more figures that I would like to include that way.
BUT
The journal also only allows 30 references. At the moment I'm at 29 references. I have never used FigShare before but as far as I understand it, I need a new reference for every figure or table I cite that way?! So that would leave me at 33 references and I really can't afford to cut my text. I also don't have any redundant references.

So as I said. I would really love to still be able to submit it to that journal somehow. Is there any way that I can upload all my 3 figures and 1 table in a public repository and cite it as one single reference in the manuscript?

I hope my question makes sense so far.

Many thanks
I routinely use OSF (Open Science Framework) and have a single reference to Supplementary Materials that links to a compressed file on OSF. You can "register" (fixed snapshot) the set of materials you want and have a single reference (including doi). I don't do it quite like that, I simply refer to Supplementary Figure 3 or whatever in the paper, and provide the link in whatever way the journal requests supplementary materials be linked.

But it doesn't have to be a single compressed file. The way OSF archives work is that the single link is to something more akin to a webpage and you can have multiple files able to be downloaded as well as a wiki style information page. It would be annoying for your readers to have to download multiple files though.