Sideway move in Aerial View was my silly idea
I recorded a video with blinking - it shows the variable speed of blinking:
http://reterio.home.pl/inweb/blinking/blinking.html
Three more observations related to sideway move:
1. When I click ALT in windows7 OS, it selects upper-menu (so when I try to navigate in a room by holding and releasing ALT many times I sometimes navigate unintentionally among menu items).
2. When I hold ALT and use up/down arrows nothing happens, maybe move forward/backward should work as without ALT
3. When I detach 3d view and change focus from app main screen to 3d-view screen I observe probably unintentional behaviour. Eg. sideway move is active without ALT, or move is not possible at all.