Details will give detailed information on your player cards such as:
Will give Lowest BIN price and Price Ranges on your player cards.Toggle Loyalty on/off for all players in your squad (Loyalty gives +1 to chemistry).Will remove all players from your squad so you can start building a new squad.Finding players that have good links and chemistry to other players can be a challenge.
Futbin squad builder has a suggestion feature, which will help you find the players with the best chemistry and the best links to surrounding players:
Disable will hide the suggestions icons
Enable will show the suggestion icons
The Formation position bulbs will enable you to see the position for the slot when the slot has been filled by a player.
You can toggle Formation position bulbs on/off on filled slots.
If one or more slots have been filled with players out of position, pressing this option will optimize your player position for maximizing chemistry. For example, If you use a RB player on a RW position, updating the player position to position RWB will give you +2 in chemistry.