unlock key

Under "General" I have an icon looking like a key. When I click on the icon "unlock Chest Skill"- how do Iunlock do?
I assume that this icon means that I can unlock some of the other icons. Would like to have explained how I use this treasure?

sorry buy my bad english

unlock chest skill is for unlocking treasure chest that you can buy or recieve during the game,

the unlock chest skill does not unlock the other items you just have to click on the other items in order to upgrade them

With every icon stays "distributale skill points:0" How can I get more Skill points ?

With every icon stays "distributale skill points:0" How can I get more Skill points ?

everytime you advance a lvl/rank you will be awarded some pts, look at your tasks for your next title upgrade and it tells you how many.

in general, the amount of skill points you get, increases each level. also, the unlock chest skill just tells you the level chest you can unlock without a key.
as for the chest skill, dont upgrade it past 3.