[SOLVED] How to set the default run configuration for a project in Rider

How to set the default run configuration for a project in Rider

I have a C# solution, with multiple projects, being managed in Rider. For one project ("Proj1") I have multiple run configurations ("Proj1 A", and "Proj1 B").

By default the project explorer UI offers one of the configurations preferentially:

"Build Selected Projects"
"Run 'Proj1 A'"
"Debug 'Proj1 A'"

but I want to run 'Proj1 B' more often that 'Proj1 A'.

How can I can set which one is offered by default? (It doesn't seem to be done alphabetically, it mostly seems to be "order of creation"!?

Solution

Find \.idea\**\workspace.xml.
In that XML file find elements: <project> -> <component name="RunManager"> -> <list>.
Inside the <list> element, find <item> elements looking like this:

<item itemvalue=".NET Project.Proj1 A" />
<item itemvalue=".NET Project.Proj1 B" />

Reverse them - Rider appears to use whichever one is listed first as the default run config to offer.