Cannot set the defaultAppName dynamically without restarting kibana

[ahrtr]

I know that we can configure "kibana.defaultAppId" to load a dashboard by default immediately after logging into kibana. But I don't think it's a good way, because,
(1) We have to use the dashboard Id instead of the dashboard name. It's obvious that ID doesn't make any sense to end users, instead, they only care about the name;
(2) We have to configure the kibana.yaml, and restart kibana instance to make the configuration to take effect.

So it'd be nice to let the end users to set the defaultAppName(not defaultAppId) on kibana GUI. One proposal is to add a configuration item to set the defaultAppName (not defaultAppId) in "management" --> "Advanced Settings".

[jbudz]

for 1) would #14760 work for you?

[epixa]

What's the problem with having to restart the Kibana server, exactly?