Support for logical models additional to physical modeling

CLUSTER BY is one of the key features in snowflake to partition the data. When it will be supported?

Check In / Check Out functionality for subject areas and for tables itself for collaborative working the same model

Which support types: hotline / mail / SLA Times are provided with unlimited licence?

What is the supported table limit for 1 Model or Subject Area? How busy is the model with 2000 and more objects

How can I adjust/modify a datatype on hundreds of tables with a kind of BULK-Editing

BULK editing to adjust/modify a datatype on hundreds of tables

We need the possibilty to export the model as xml or json or binary File?

How can I export my models metadata in XML format?

Functionality for approving model changes would be usefull (a kind of checklist, that the change made b person 1 can be approved by person 2)