Menu selection movement in 2x2

Hi sorry if there is any similar thread but I didn't know what to look for then;

I wanted to ask you I have a 2x2 menu and I have to move from one option to another with a select but without continuing ... but moving with the arrows according to the direction when possible. up-

I can move from text0 to text1 with → but from text1 to text2 i have to do ↓← or ←↓ simple.. a directional movement.

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Example:

 //my menu
     text0 text1
     text2 text3

I was able to create a script but not accomplish what I am looking for.

 //my script
 
 void HandleActionSelection()
     {
         if (Input.GetKeyDown(KeyCode.RightArrow))
             ++currentAction;
         else if (Input.GetKeyDown(KeyCode.LeftArrow))
             --currentAction;
         else if (Input.GetKeyDown(KeyCode.DownArrow))
             currentAction += 2 ;
         else if (Input.GetKeyDown(KeyCode.UpArrow))
             currentAction -= 2;