Why doesn't DC give us interactions between Beast Boy and the Doom Patrol?

Lately Beast boy has been the protagonist of a few DC events (for example beast world), and the Doom Patrol has not even had an appearance(and they are his family).Gar was "dead" and we have not even seen Rita's (his mother) reaction?! Nightwing is also part of the Titans but we always see interactions between him and the Batfamily, why do we never see Gar with the Doom Patrol? It's something I'm tired of and I hope that DC will do something in the future. At least it has been confirmed that Gar calls Rita every day