kkuszek wrote:For example, what if I want to keep the oldest one, but delete some specific incremental points in between?
Remember they are incremental backups not differential backups. In a backup chain, they are all linked together and dependent on each other. Well actually the one furthest away from the full is dependent on the whole chain. Deleting files in the middle would corrupt the chain. In other words, one increment is not necessarily dependent on the VBK/full directly but rather on the chain.
Anyway what you propose would require to rebuild the next point in the chain to store unique changes that are not in the parent which is not possible.