Fixable Slots [Forge(1.12.x)/Fabric(1.16.5 & 1.17)]

Thanks to the Fixable Slots modification, your valuable items and blocks always remain in preset locations in the inventory. This module allows you to lock specific slots in the player's backpack, including the hotbar, so that only designated items can be placed in them.

For maximum convenience, several content filtering options are available:

Exact Match: Only items completely identical to the specified sample are placed, taking into account metadata/durability and NBT tags.

Fuzzy Metadata Match: All objects with the same identifier and NBT tags are suitable, but durability indicators are ignored (perfect for tools).

Fuzzy NBT Match: Items with matching ID and wear state are allowed, but NBT tags may differ (useful for bees from Forestry).

Free Mode: All items with the corresponding identifier are accepted without regard to NBT and damage data.

Tag Filter: Only items possessing the specified tag are placed in the slot, which is changed by multiple clicks to switch.

How to Use: To set a lock, drag the item to the desired cell and hover the cursor, then press the scroll button. Repeated clicks allow you to change the filter type.

Mod demonstration:

There are suggestions for improving functionality - leave them on the feedback channel.