In TurboTax Online, search for "provincial". On that page select B.C. mining flow-through share tax credit and continue through until you get to that page. There you can enter the amount available for carry forward from your 2023 Notice of Assessment or Notice of Reassessment.

Thanks for the reply! But whenever I try to search provincial, the only response it gives me is for Alberta. Do I need an upgraded TurboTax program to access different provinces on my return? 
Thanks again for your help

You can only access the forms for the province that you selected when you started your return. TurboTax can't do multi-province returns.