The Graph has several types of input:
1. Text Box
On Textbox, you can directly type the text that you want.
On the Dropdown input, you can only select from the options available, and can only select one.
Similar to dropdown, you can only select one of the available options.
On autocomplete input, you have to select one from the results. You can not only type without selecting the results.
a. Simple Autocomplete
The appearance of simple autocomplete looks exactly the same with Textbox initially. But after typing something, you will notice a difference; there is a loading sign on the edge, which looks like this:
…and you need to select on from the results.
b. Autocomplete with Browse
Almost similar to the Simple Autocomplete. But you can see the available options by clicking Browse button.