[Chimera-users] Adjust bond angle doesn't seem to work

Hi, I'm new to Chimera Using 1.7 candidate build 37955 When I select two adjacent bonds and adjust their relative angle in Tools->Build Structure->Adjust bond angles, nothing seems to actually change in the graphic view I tried selecting the 3 atoms involved afterwards and measure the angle, and it still reports the original angle, so I don't think it's a graphic glitch but the angle isn't actually being changed. Is this a bug or am I doing it wrong? Thanks