Custom Combos 2019 on Mac

Hi

I'm trying to create a combo chart but I need to create a custom combo. I am not being given the option to create a custom combo.

I'm using Excel 2019 on a Mac.

Thanks for your help!!!
A

Hello alexis777 and Welcome to Excel Forum.
It may help if you upload a sample of the data utilizing the instructions in the banner at the top of the page.
It may also help if we have more explanation as to what customization is needed in the combo chart.
Let us know if you have any questions.