Dual Hotbar Mod will increases the size of your hotbar by adding another hotbar that will enable you to have more items very fast at need, by accesing them instantly without opening your inventory. You can access all those hotbars from moving the scroll wheel or you can press the number 1 for the hotbar one and if you press 1 for 2 times or CTRL + 1 you will be moved on the top hotbar and you can do the same for the rest 9 hotbars.
Also Dual Hotbar has a configuration which enables you to change the presentation of this Dual Hotbar. You can have a massive hotbar across the screen with 18 slots or you can use the little compact dual hotbar.
This dual hotbars mod will use the top and bottom row of your inventory, so all you need to do is to load up all the items you want to have on your hotbar, but also a great thing for this Dual Hotbar Mod is that you can use all the rows from your inventory because the Dual Mod has the ability to add 4 hotbars that will show all the items from your inventory.
Download Links for Dual Hotbar Mod
for Minecraft 1.11
Dual Hotbar Mod 1.7.10
Credits: RebelKeithy – Curse Forum