With this dialog you can set a crosshairs; it facilitates reading of the special values at the axes. You can also activate a search function for particular points within a configurable snap radius.

▪Check the Show crosshairs box to switch it on.

▪Check the Use search function box.

▪If desired, set the snap radius in millimetres and

▪define in the Search criteria/priorities section, whether the crosshairs be set to

▪gap beginnings and gap ends,

▪to local extremes and/or

▪inflection points (these are points where the gradient changes; not reversal points in terms of mathematics)

▪should snap.

▪You can then allocate to each of these search criteria a priority for the search function (choose from the list).

▪You can activate the crosshairs for your current graph either by [Accept] (the dialog remains open) or by [OK] (the dialog is closed).