Limit access to just two dashboards without collections

I’m currently wrestling with a filter error that seems to have come about after v0.30 (the same release as collections).

I think I’ll use an older version but I am also looking to limit a certain user/user group’s permissions to just viewing two dashboards and not doing custom queries/questions etc.

Is there any way to do this without collections (i.e. in v0.29.3 or earlier)?

Any ideas much appreciated