Draft Pick Trades let managers give up a draft position next season for a player on another team or swap draft positions with another manager.
In this type of league, each team selects their keepers in the offseason, and then all un-kept players are put back into a standard fantasy football snake draft. In a league with three keepers and 15 roster positions, the annual draft would be 12 rounds.
Trade Draft Picks Go to "Opposing Teams" and select the team you want to trade with. Click on "Propose Trade. Propose the draft pick trade.
Currently teams can only trade competitive balance picks, which are a small number of picks that occur after the first and second rounds of the MLB Draft. The league prohibits them from trading all other picks. That prohibition stretches back to the beginning of the draft in 1965.
Draft Pick Trading enables Team Managers to trade draft picks with other Managers. For example, Team A's manager may trade their 3rd and 4th pick for another manager's 1st and 6th pick, if they believe that it would benefit them in the draft. Trades involving uneven amount of draft picks will go through.
Keeper leagues allow Team Managers to keep players on their roster over multiple seasons without having to redraft them. Keepers are only available in League Manager leagues. Team Managers may select as few players or as many players as the league creator selected during league creation.
A keeper league functions similarly to a redraft league, with the added twist of keeping a fixed amount of players on your team from season to season. With keeper leagues, fantasy managers gain multi-year benefits for their successful draft picks, while still avoiding significant penalties for their bad ones.
If you're talking about one keeper and a more or less standard league, selecting a QB is probably unwise, unless it's Luck or Rodgers, and even then it's a gamble.
You can only keep a player who was on your roster at the end of the season, and who spent at least 5 consecutive weeks on your team. Keeper status is provided to the player, not to the team, and is based on when they were drafted, not when a team acquired them.