For the precise definition of points at which to insert elements, the software offers at any time during the insertion of an element various construction aids which can be activated over the context menu opened with a right mouse click. The result of a construction aid is either a single point, if you like as a replacement for a normal mouse click when planning, or a line along which the next point can be defined, e.g. a perpendicular.
It should be noted that the resultant point is treated exactly like a mouse click. Depending on the input tool being used, elements expect one, two or more clicks during construction. Supports are positioned with one point, walls always expect two points, namely the start point and the end point of the wall. In the case of a tool that expects only one point, e.g. a support, the support is inserted directly at the point defined on termination of the construction aid. To insert a wall therefore, the construction aid can be used twice, to define a start and end point.
The construction aids which are available are listed in the context menu. The letters in parentheses are shortcuts over which a construction aid can be activated at anytime during input. As opposed to other input aids, these shortcuts are not a combination of keys, for instance ‘Ctrl+m, but simply the letter itself, i.e. to call the construction aid ‘Center point’ simply press ‘m’ on the keyboard.