Editor window problem

I have an easy problem but i couldn't fix in phpStorm.

* In the beginning of one line, when i click left arrow, cursor doesn't go to the previous line's endpoint.
Cursor stays in the beginning of the line.

* When i click to the right of the line, cursor doesn't go to the last character,
cursor goes to the place where i clicked.
You can go from screenshot attachment.
When i click point A, i suppose to cursor go to point B.

Thank you in advance