I've got a "few" problems I might need BlueCube

First is easy, because I've seen someone do it...I just simply forgot. He had the game set up that on certain maps (like a field map) whenever he hit "v" i believe, he would jump.

The second might be a little harder to figure. I want to have a system where you can take an item i made called a "floral kit" which can be used to cut out herbs from the map. The problem i run into is i want the herbs /plants to grow back after certain periods of time depending on how rare the herb/plant is rather than creating a large and complex switch system.
Problems I've already faced with this are: The herb comes back everytime i enter the screen, I would enter the map the herb was in but then would constantly recieve the herb and confirmation mesage. The herb never disappears because the item i have is always with me.

Basically all i want to see is something like this. ( I walk into the screen and hit the action key next to the herb to recieve it. the herb disappears and i walk out of the screen. I do something for about 5 minutes and decide to go back. I walk back into the screen and wait 5 minutes since it takes 10 minutes to grow back. It reappears and then I grab it.)