Help with keep values

Hi I’m new making this kind of things and i don’t understand well the expressions , im making an app for administrate data for my collegues , for make an intuitive environment for my colleaguess i make a first table where shows what he is looking, and return a second screen showing data with models selecting a model the app show another screen showing 4 actions one of that actions is go at parameters of that model selecting it should display the parameters of the model selected before but i can’t make selecting it show the value (the values are in the same row of the table who shows the model)
My question is , how I’m make the app display the value what i selected before ?
Any answer is welcome and thanks for take time to answer
Ps : my English is bad sorry if something is written wrong