New - HTML / Custom Actions - number of records - lots of q's

Hi all

New to Creator and so far VERY impressed.

1.
A couple of things - is there a way to have custom buttons? I see you can have Pages (and have not played extensively there yet) which looks like u can embed HTML... not sure if that is an option...?

2.
What defines an app? Considering an app can have as many "tables" as you like - why would you have more then one app? So if an app can have plenty of tables and forms and even "call" (relate/refer) to other apps or forms of apps. I then thought maybe it is security related - or?

3.
Each "user" gets 10,000 records - so in my case - 20 users = 200,000 records. And yes I know you can buy more "blocks" of records but anyone out there pushing the limits and using apps with close to even 10k records? Looking to see what sort of apps people are building with Creator and how they find performance.

4.
I haven't yet delved - but I see in CRM Plus the level of detail possible in designing your own reports and forms is pretty deep. Guessing this is also possible in Creator?...

But yes - it would be great to hear some stuff about what things other people are using Creator for...

Thanks for reading
Brynley