Comment by abanana

A nitpick to add to the sibling comment, more a minor personal annoyance than anything: No throttling is a menu button that, when clicked, gives you a dropdown menu - not a "combobox". A combobox is a text input element that has an associated dropdown menu.

I see this mistake very often from people whose UI learnings came via Visual Studio, because it didn't have a separate UI element named "dropdown menu" or similar. You instead had to add a combobox and configure an option to turn it into a plain drodown list (e.g. set editable to false in VB6, or change dropDownStyle in VB.net).