I think this:
[Q] Does it matter if the object store contains transaction logs for both Transacional MSC and applications?
Should be:
[Q] Can the ObjectStore that the application user configures be used by the MSC?
[Q] Must the transaction/recovery manager allow separate object stores to be configured?
[Q] When using the CLI to browse the object store to resolve transactions manually, must the MSC and application txs both be visible?