(no) Working with Object Selection

Single selection

In normal operation, clicking on spot selects it. Clicking on another spot deselects first one and selects the second. Clicking on empty place (with no spots beneath it) deselects current selection, if present.

Multi selection

To enter multi-selection mode, press and hold Ctrl key. In multi-selection mode, clicking on spot toggles its selection; selected spot becomes deselected, while those not selected becomes selected.

In this way, you can select multiple spots by clicking on them in succession and correct your selection by clicking again onto undesired spots.

Clicking on empty place clears selection as usual.

Multi selection by window

Additionally, one can select multiple spots at once using rectangle selection.

With Ctrl key pressed, press mouse button and drag mouse pointer to draw selection rectangle.

Dragging from left to right selects spots enclosed by selection rectangle, which is drawn as light blue with solid border.

Open

Dragging from right to left select spots intersected by selection rectangle, which is drawn as light green with dashed border.

Open

To use desired method, start dragging from left side or from right side of spots group, depending on which method would be more convenient regarding specific spot shapes and their placement.
During dragging, spots covered by selection rectangle (enclosed or intersected) becomes highlighted so as to expose which of them would be selected.
When you are satisfied with your selection, release mouse button. Selection rectangle disappears and highlighted spots become selected.

To correct your selection, you may click onto desired or unneeded spots as necessary, still holding Ctrl key pressed.
Starting new selection by rectangle will clear current selection and define new one. Currently there is no possibility to combine several multi selections.
To finish multi-selection mode and go back to normal zoom-pan-drag operations, release the Ctrl key.

Layers and selection

Selection will be performed on visible layers. If all layers are visible, all objects will be selected, that might result in really large number of selected objects.

It is advised to work only with single layer containing, for example, spaces. 

Single selection drag point for multi-selected spots/groups

Done under JIRA issue [HDC-1726] - Move grouped / multi selected spots using one "drag point"

After selecting one spot or several spots (or groups) from the same drawing, its center point is calculated and drawn in form of diamond shape.
You can drag all selected spots together by dragging this diamond shaped point.

You can change position of drag point by dragging it with Shift key pressed to desired position.