We've had this come up in our local group, and I've seen some do it on some of the online videos. Our group is split on the rule for this.
Is it legal to estimate your ship's location on the play area by using your fingers and touching the play space? All template are left off the play space and aren't used in the process in any way. Could you, for example, move your ship and then put your finger down where you expect to end up after boosting or rolling? Can you use your thumb and index finger to estimate how far you will move after a boost, again you aren't presetting the length of a 1 straight between your fingers with the template before you do this.
Are you allowed to estimate on the play space with just your fingers and your own reckoning where you expect to end up after a move, roll, or boost?