Cloud analysis is amazing. But why stop at move 7?

Cloud analysis is an amazing feature which allows to improve the opening repertoire by analyzing the position to a high depth only once.

But why does this work only till depth 7? I would really appreciate if lichess will allow to save analysis to a slightly higher depth (like 8 or 9).

1) I think you mean move 7, not depth 7.
2) If you use Study, I think there is no limitation like you are describing.

how do you know it's depth 7?

@arex yes, I meant move 7 and thank you very much for telling me about study. I didn't know that it does not have this limitation.

@fpvbmct because I tried to analyze positions below move 7 and all of them were saved in the cloud analysis. But all the positions after move 7 were not.