I tried {{issue.subtasks.Story Points.sum}} to sum up story points, and it worked.
After that, I wanted to sum up only issues with the value I want of the custom field. Field is 'Components', and it has values 'Backend', 'Frontend', 'Business', 'Design'.
I thought {{issue.subtasks.Components.Frontend.Story Points.sum}} would work, but it didn't print any text. Is there any way of using smart value to use as I intended?