What does "setExecutionSetting" do under RunConfiguration?

is anyone aware of what setExecutionSetting does ?
We can access this using RunConfiguration.
By name, Does it allow setting custom execution settings ?
Are these the same settings which appear in Report/Email Template like Host name etc ?
Can we set the host name to some custom value using setExecutionSetting ?
I am trying to understand this because currently, There is no way to pass any custom field in report/email like Build version etc. So if by anyway we can modify the execution properties, which eventually appears in mail/report, we can pass the BuildVersion custom field using this approach.
Thoughts please ! :slight_smile: