# How to display crosshairs in a single window. For example: the crosshair disappears when a single window is enlarged
**URL:** https://discourse.slicer.org/t/how-to-display-crosshairs-in-a-single-window-for-example-the-crosshair-disappears-when-a-single-window-is-enlarged/23593
**Category:** Development
**Created:** [May 26, 2022, 10:49am UTC](https://discourse.slicer.org/t/how-to-display-crosshairs-in-a-single-window-for-example-the-crosshair-disappears-when-a-single-window-is-enlarged/23593 "2022-05-26T10:49:59Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@janus\_zhu](https://discourse.slicer.org/u/janus_zhu)
#### Post date: [May 26, 2022, 10:49am UTC](https://discourse.slicer.org/t/how-to-display-crosshairs-in-a-single-window-for-example-the-crosshair-disappears-when-a-single-window-is-enlarged/23593/1 "2022-05-26T10:49:59Z")
How to display crosshairs in a single window.
For example: the crosshair disappears when a single window is enlarged.
thanks
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### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [May 27, 2022, 3:14am UTC](https://discourse.slicer.org/t/how-to-display-crosshairs-in-a-single-window-for-example-the-crosshair-disappears-when-a-single-window-is-enlarged/23593/2 "2022-05-27T03:14:24Z")
If you show a single slice then there are no slice intersections to display. However, you can still display the crosshair.
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### Author:  [@janus\_zhu](https://discourse.slicer.org/u/janus_zhu)
#### Post date: [May 27, 2022, 12:38pm UTC](https://discourse.slicer.org/t/how-to-display-crosshairs-in-a-single-window-for-example-the-crosshair-disappears-when-a-single-window-is-enlarged/23593/3 "2022-05-27T12:38:21Z")
I’m sorry I didn’t describe it clearly.
First, open the CT image, and 4 views will appear, with crosshairs.
Secondly, I maximize one of them, such as the R view, and the cross hairs will disappear.
To put it simply, I just hope that the crosshairs will still exist when the view is maximized.
Looking forward to your reply
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### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [May 28, 2022, 4:39am UTC](https://discourse.slicer.org/t/how-to-display-crosshairs-in-a-single-window-for-example-the-crosshair-disappears-when-a-single-window-is-enlarged/23593/4 "2022-05-28T04:39:45Z")
Crosshair and slice intersections are two different things. Slice intersections will not appear if you only have one slice view in the view layout. If you enable crosshair display, it will be always visible in the slice and 3D views, regardless of what layout you use.