If you are going to use SAP system on HANA :
1. Then if you create a table : by default it will be Column Store but you can change it to either Row or Undefined during creation time
2. If you are using HANA as a database for SAP system then yes the new records will be stored in HANA
3.Yes you can use SE11 to create a table in SAP System on HANA
But if you are using HANA Studio to access HANA - there are no T-Codes there
You have to use SQL Statements or Create tables via GUI
4. These views directly access ERP tables present in HANA database
You can learn more here :