[TxMt] navigate between blocks

[enas]

Hi,

I'm sure that question must have been asked over and over, but I  
couldn't find any similar question, so please forgive my ignorance.

I'm just wondering if there's any simple shortcut to navigate between  
blocks. Suppose I'm in the middle of a big block, I want to go to the  
end of it, or to the beginning. What's I'm currently doing is either  
an F1 to fold the block, if I want to go outside (right after or right  
before), but which is not ideal since I don't always want to actually  
make the block invisible, or I use the Cmd-Shift-T to open the go to  
symbol panel, then type Enter if I want to go to the beginning of the  
block, or Down then Enter if I want to go to the end of the block. But  
that's too many strikes.

Is there any direct shortcut for what I want - or how can I define  
one? What are your habits on that topic? (I particularly use that when  
writing LaTeX documents.)

Thanks,

enas