i have three turtlebots and i would like to do a leader follower implementation. However, i have a small issue which is that i am currently using a map and i have to place each robot in a correct position using RVIZ. Once three robots' locations are almost exact on RVIZ, then transformation from base link is sent to two followers. The issue is i have to put each robot in exact spot which is doable for three but if i have 10 how do i simplify the process of not having to move around the turtlebot in RVIZ all the time to get its exact location or approximation location to the map. Thank you