Ranges implementation

Hello,
Hope this not an error with my code...
So I really like to use ranges. Lets assume tensor of 3 dimensions.
I can do x[some tensor] ....
I can do x[x<=2] ....
I can do x[..int,..,..] .....
What I cannot do is x[..,some tensor,..] ... where some tensor are indices or booleans.
Is where any way to implement this. Would be really cool because this often appears in pythonic code...

Thanks