Changing/adding colours in a template

[Tower2320]

Hi I am hoping you can help me.

I want to make an events calendar for 5 different venues in the same calendar.

I like the template Multi Functionality Global Calender.

This file would be great but I want to be able to put an option to select a venue and that venue would have a particular colour on the calendar.

Is there a way to do this with the template or do I have to make a new file?


Thank you

PS. I only know basic Excel.