With this addon you can use the keys h, j, k and l to show the answer.
When you are seeing the back of the card (the answer), those keys will
act as 1, 2, 3 and 4 respectively, where 1 and h corresponds
to "wrong" and 4 and l to "very easy".
Pressing u will undo the last action (it is CTRL-z by default).
Pressing i let you insert new content on the current card (by default,
that's e). Useful for checking hidden information on the card.
There's nothing wrong with the original e shortcut, but i is closer
to the other keys (h,j,k,l) and makes sense as in "insert mode".
This addon is a fork from the Right-hand reviews with
jkl;, which is a great addon!
The reason to move the keys one step to left (h,j,k,l in instead of
j,k,l,;) is that ; is placed on different places in different keyboard's
layouts. And it simply fits the Vi logic, ehe.
The u is based on the z function of
Handy Answer Keys Shortcuts addon.
But again, u makes more sense as undo.