Hi,
No, there is no way to resume the indexing where it was even with the latest advanced-storage plugin.
If you really have a huge amount of data to index and want to be able to resume indexing, I would strongly recommend that you use the advanced-storage plugin and write your own python script that list the files and call /plugins/advanced-storage/adopt-instance for each file individually. This is actually equivalent to what the “indexer mode” is doing but you’ll have full control on it.
(Reference API)
Note that I already recommended you to use the advanced-storage plugin back in June
Best,
Alain