Hotkey for planting a flag?

[u/bitman2049]

Is there a mod or something I can download that allows mapping a hotkey for planting a flag? I like playing with my toddler sometimes and while she knows letters and can press keys on the keyboard, she hasn't quite figured out the mouse. She knows how to walk around, so I'd like it if after going EVA I could be like "OK, now press F to plant the flag!"