The UI for the table in the Metadata Details Summary macro should show table sorting

'Tis a little-known fact, recently discovered by an adventurous tech writer, that you can sort the table produced by the Details Summary macro, by clicking the column headers.

But the UI gives no clue to this insanely valuable feature.

Request: Make the UI the same as for standard tables, with those inviting little "click me, click me" up-down icons.

Here is an example on CAC: https://confluence.atlassian.com/display/DOC/Status+Report+-+Example+of+Details+Summary+Macro
_{Go on, click the column headers, I dare you.}