Of course, as you would assume, idea funnels contain ideas, but sometimes, you are not collecting ideas but rather collecting problems, risks, new challenges, goals, etc. You can change the input type of a Mission in your mission settings.
Configure the Funnel input type
Open your Funnel > Edit Funnel > Details > Mission Input Type
This will ensure that all new items added to this Funnel are automatically connected to the configured Mission Type. The application's labels will also change.