click in workspace + spacebar opens the radial menu to change view mode orthographic or perspective projection and bottom, top, left, right, front, back..
“L” Opens the inspector dialog for the workspace locator.
“Control + L” Turns the locator display on and off.
“Shift + L” Resets the locator to the coordinate origin.
“Alt + L” Sets the locator to the geometric center of all selected elements. If only one element is selected, this corresponds to the element position. If no element is selected, the locator is reset to the coordinate origin.
“Shift & scrolling” modifies the tool radius
“Crtl & scrolling” modifies the tool strength
“Crtl & right mouse button” opens the workspace view