Create Date Calendar Pop-up

Any way to create the project date box to populate a calendar select box?? If not, how could I change the text to read: “How many days will your campaign be active?”

https://ikrmedia.com/egfunding/create-campaign/

Again, REALLY appreciate the support/help and kudos on both your plugins and themes!! Totally awesome ??

https://www.ads-software.com/plugins/appthemer-crowdfunding/