Request: Add subscriber to a specified list

[xh3n1]

Short problem description

Currently, you cannot add a subscriber to a specified list.

[derralf]

+1

[BrunnoPrego]

I want this too.

[marcabreu]

+1

[LTepliakov]

+1

[mailletf]

+1

[jackrobson]

+1

[vaclavgreif]

I need this too, anyone can please review the pull request?

[Ciao121]

Same here.

[Cool-and-Deadly]

Also here

[k-tatgenhorst]

Is this project abandoned?
This morning using the current code, I needed to manually replace the JMS Serializer bundle that was broken when 8.1 branded readonly a reserved keyword. So, I did that and manually changed entries.
Now, I get here and have to use a 2.5 year old pull request which has not been merged (and incidentally looks good).
Is there an active maintainer? I ask this as someone who has used this package before and likes it. If there is not, please consider speaking with me and I would be happy to assist.