Currently, we support changing the Template and/or Style of multiple-selected Elements at once via the Templating and Styling sections of the Properties Panel.

However, when multiple of the same Elements are selected at once, the option to perform this same action from the right-click context menu is not possible.

See attached image.

Repro Steps:

1) Create a Studio Project containing a MainPage.xaml
2) Introduce multiple Button Elements to the Page.
3) Either using [Shift+Click] or [Ctrl+Click], select all Button instances at once.
4) With the multiselection still active, right-click on any of the Button Elements.

Observe how the 'Templates' and 'Styles' sections are greyed out and disabled.

5) With the Multiselection still active, navigate to the Properties Panel's 'Templating' section.

Observe that the Template can be changed for all selected Elements at once.

Expected Results: When all selected Elements can have the same Template or Style applied to all of them, the option to apply the same Template or Style is available from the right-click context menu.
Expected Results: When all selected Elements do not share compatible Templates or Styles, the Templates and Styles sections of the context menu remain greyed out and disabled.