Please don't ask for updates when new mcreator versions release. This plugin will get updated, but please have some patience.
This plugin allows block to have more than one tank.
Additionally, visual fluid widgets can be added to guis
Fluid validation procedure blocks:
They allow you to set which fluids a tank can and cannot hold. Note: If a tank is set to only hold specific fluids, the procedure block will override that.
To set a fluid tank to, for example, only hold water:

If you have multiple tanks and want to that both tanks cannot have the same fluid, you can use this:
(The "Get copy of Fluid fromTank" procedure block comes from the Fluid Control plugin)
Wiki:
Everything about this plugin can be found here:
zsemper.github.io/plugins/ftao
Changelog:
- v1.3.0:
- added procedures to change and reset the fluid tank capacity and valid fluids
- added width to fluid overlay
- for 2025.3: moved fluid overlays into the gui editor and removed the overlay list from the fluid tank mod element (mod elements with existing overlays will still have the overlay list as long as it contains elements)
- stopped support for old "set fluid in tank procedure block" as the new ones remove setting x, y and z coords other than the default ones (to prevent mod/game crashes)
All changes can be found here:
2024.4 does not work at all