Problem:
Limit the number of posts returned in a Views loop while using Block view
Solution:
When you click on your view block from the block navigation, for Toolset view block on right sidebar you will see the tabs for controlling the pagination and number of items to display. You can set it and control the settings from there.
I have a child archive page which I want to display the parent term's title with link.
Solution:
There isn't such kind of built-in feature within Toolset plugins, in my opinion, you can use the custom shortcode, see solution in below similar thread: