Connect 4

Hello everybody, 

i developped two apps but now i want to develop a game. The connect 4.

I wrote a script for the game. 
I know that i need a tab (a tab in a tab) to realize a  tab 6x7.
I need to recup the point of finger’s touch or mouse touch (of the player) to change the tab with a jeton in the colon that the player touched. 

I need your help to create this game or show me the way of beginning please 

best regards