Enter data for child table in assembly view

I have created a child table (sys_table) as a field in a content type. The child table consists of two fields : pName and pValue (both sys_EditBox).
I am able to go to the content explorer and add values to the child table in the Edit mode (Edit table button).
I can see the values in the assembly view - but cannot modify them directly unlike the other fields (sys_editbox) where if i just click on one, it pops up an edit box.

What should I do to allow a user to insert/modify child table data directly in the Assembly View ?
Currently I have to go under the ‘Edit’ menu->Content Item which opens up the whole content item and I click on the ‘Edit table’ button.