manager site tree too long

hi
i am from myanmar . i use modx . Do you know our country myanmar ?? ok if you didn’t know , it ok .

I use modx to create my blog ,
in modx one post is one page ( new resource ).
so i write many post and my blog is too big .
i expend my blog link in Manager panel and it show too long .
i want to resize the site tree in manager

And here the another same question .
i use my shopping cart ( book shop ) with modx .
it so ok to use but i have a same problem with site tree .
when i create one product and i create one new resource in shop menu.
so i expand my menu and it show too long because it have so many product pages .

i want to resize the site tree in manager
how do i do that ??
And sorry for my english . thx to all.