Usually you could just change a method in the Game_Party class to set a permanent limit for the amount of gold the party can keep in its purse. This scriptlet pretends to override that by allowing you the game developer to change the Maximum Gold Limit in game at any given time.
It includes several script calls for your convenience so please read the instructions, namely the Script Calls section of my scriptlet. By the way, I forgot to mention that you can also set an initial maximum limit by modifying the value of the MAX_GOLD constant. It's the only constant there so you won't miss it!
There are no screenshots for this changes had never relied on any GUI at all.
Ruby:
# * Extra Gold XP & ACE
# Scripter : Kyonides Arkanthes
# 2021-09-09
=begin
*** Script Calls ***
- Check out how much Extra Gold the party has earned - They cannot spend it!
$game_party.extra_gold
- Reach Maximum Gold Limit
$game_party.extra_gold_to_purse
- Check out what is the current Maximum Gold Limit
$game_party.max_gold
- Change Maximum Gold Limit at Any Given Time In Game
$game_party.max_gold = NewLimit
- Has the Party's Purse reached the Maximum Gold Limit?