Both of those things are totally possible.
Hubitat has numerous different native (i.e. built/maintained by Hubitat staff) applications to manage automations -- that can be understandably confusing at first...
For instance, for rule-building, options include "Basic Rules", "Simple Automation Rules", "Visual Rule Builder", Rule Machine" and WebCore. Then there are more specialized options for dealing with specific things -- like "Basic Button Controller", "Button Controller" and "Room Lighting".
In some cases, these options may be older tools that aren't deprecated, but also aren't being actively maintained since they were replaced with a newer tool. An example of this would be that "Simple Automation Rules" has been superceded by "Basic Rules".
The "Group and Scenes" app mentioned previously is another example of that -- it's been superceded by "Room Lighting".
These older tools are still available because it would be hard for many exisitng users to transfer to a newer tool if they suddenly disappeared,
If staff ever decides to fully deprecate any of these older tools, I'm sure they'll give a healthy head's-up about it, but I myself would not use them if I were brand new to the platform... If I was just starting out, I'd plan to avoid the older tools. But that's just my $0.02 (and worth that much!)
The Hubitat Documentation is very good, and can be a helpful research resource.
The Search tool within the community here is also a powerful resource (magnifying glass in upper right corner of this window).
This post here would be helpful with respect to nuts-&-bolts transition planning:
