I think McCreed uses beeswax paste, rather than solid beeswax. The paste looks to be a mixture of beeswax and turpentine. So you could have a go at maxing some paste yourself, but it will probably be easier to buy a jar/tin of it.

I use the solid beeswax for scraping onto screws before fitting, so it shouldn’t go to waste.

Heating up the wax so it’s soft enough to push down holes will probably make it warm enough to mark the finish.