Monster hunter questions from a new player

Hi,

I have beaten the main story in Monster Hunter Wilds, but even after that, I still don't understand some in-game mechanics. I would appreciate any explanations:

  1. If my personal pocket is full, but I want to replace something from the Seikret inventory, can I swap it somehow? The only way I managed so far is by permanently disposing of an item to free up a slot in my stash for a new one.

  2. Can I manually send items from my personal stash to my in-base chest while being out in the Wilds to clear some space? (Just like when I pick up more than I can carry, and the game asks me to send it.)

  3. Is there a way to check how much time is left on my food buff without going back to camp?

  4. Can I disable the prompt always asking to send resources to my chest when my inventory is full, so it sends them automatically instead?

  5. What is the point of long fishing when I can just use the quick net to catch anything?

  6. Where can I find or buy larger amounts of food ingredients, like mushrooms (the second slot in the cooking window)?

  7. Can I set a specific item, like a warming potion, on the quick wheel?

  8. Am I right that High Rank is basically a repeat of the story mode but without story mode but with harder monsters?

  9. Is there any other reason to catch bugs besides side quests or in-game guide entries?

  10. Can weapons be upgraded later in the game using an equivalent of armor orbs or they can be upgraded only by gems?