BDLS vs BDLSS vs RBDLS2LS

Hi,

I have some query about BDLS, BDLSS and RBDLS2LS?

1) Apart from the fact that in BDLSS logical systems can also be convert remotely in all partner systems. What other features are provided in BDLSS and why one should go for BDLSS and not BDLS?

2) Why SAP does not provide the feature of scheduling BDLS parallel process using bdls tcode, why we need to run RBLS2LS report to schedule the multiple BDLS process when BDLS and RBDLS2LS are nearly same?

Thanks,

Ankit Mishra