Libri Liberorum

Get rid of the hard bounds for camera point of view. (I.e. when the camera will move no further in the (angular) direction you want it to) An option to show ground-track of spacecraft (and accounting for rotation of the planet.) An 'undo' option in vehicle building - for when you accidentally grab that very delicately located piece. (Wouldn't be such an issue if it was easier to accurately place pieces.)

I'll go a little off-topic and include 'things I'd like to see someday' rather than 'in 0.26'. * Equipment/missions to let me better locate asteroids, and display an orbit for them (even if inexact.) * Payload fairings, better drag model for rockets, heat shields, consequences for having inadequate heat shielding on reentry. ** (related to fairings, hollow cylinders and conic joining sections in which I can hide away batteries, non-inline tanks etc.) * Better assembly interface. 95% of the time it works fine, you drop what you want where you want it. The other 5% of the time is just painful, as you wave a part over where you want it and the computer can't figure out where it goes. * Balloons. Stratospheric science probes. Balloon launched rockets. Manned bases in the upper atmosphere of Jool. * Shape morphing structure elements: hinged struts, rotational joints, telescoping struts * An ability to manufacture fuel on some planets, as envisaged in https://en.wikipedia.org/wiki/Mars_Direct ** This could include the ability to scoop gasses from atmosphere in * Orbital construction more flexible and advanced than just docking pre-manufactured modules. Possibly involving robot arms like on the international space station and space shuttle. * Possibly in-space construction of simple items: struts, panels etc. Supply it with raw materials (launched from Kerbal)