Unable to create button to add new entries into line item by using action

Hi, 

I want to create a button in dashboard for adding new entries to line items.

see here,

ss3.JPG

here i want to add new entries such as i want to add '9' next to '8' as ways for i want to delete '7'.

For this i want button to this action dashboard.

So while creating action.

ss2.JPG

I am unable to find this(Capex Inputs) in action window.

SS1.JPG

So please suggest me a solution in creation of this new entry button.

 

Answers