# Background image or locking layers
**URL:** https://www.tagtool.org/t/background-image-or-locking-layers/1111
**Category:** Support
**Tags:** workshop, projection-mapping
**Created:** [September 25, 2018, 11:51am UTC](https://www.tagtool.org/t/background-image-or-locking-layers/1111 "2018-09-25T11:51:02Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@LimenVisual](https://www.tagtool.org/u/LimenVisual)
#### Post date: [September 25, 2018, 11:51am UTC](https://www.tagtool.org/t/background-image-or-locking-layers/1111/1 "2018-09-25T11:51:02Z")
When using tagtool for projection mapping on buildings (or other objects), it would be a very usefull feature to be able to have a blueprint drawing as a locked background image.
For now I can import an image and use it as a layer. But certainly when having workshops with multiplayer, people tend to move this layer accidentially. And re-alligning it perfectly isn’t always easy.
So being able to lock layers or setting an imported image as background would be a great feature. Or is this already possible?
---
### Author:  [@Gnu](https://www.tagtool.org/u/Gnu)
#### Post date: [October 2, 2018, 11:41am UTC](https://www.tagtool.org/t/background-image-or-locking-layers/1111/2 "2018-10-02T11:41:51Z")
Hello!
That’s indeed an interesting feature, and we already have it on our radar!
---
### Author:  [@LimenVisual](https://www.tagtool.org/u/LimenVisual)
#### Post date: [February 24, 2019, 12:37pm UTC](https://www.tagtool.org/t/background-image-or-locking-layers/1111/4 "2019-02-24T12:37:58Z")
Yesterday during a workshop I stumbled upon an idea to lock my background and foreground layers.
I used an extra iPad as ‘server’ connected to the projector, but hidden for the public. On this iPad I selected my background and foreground layers so the other iPads couldn’t interact with them anymore.
It’s a rather expensive fix, since you need an extra iPad, but it works.
---
### Author:  [@fabriclenny](https://www.tagtool.org/u/fabriclenny)
#### Post date: [February 27, 2019, 10:59pm UTC](https://www.tagtool.org/t/background-image-or-locking-layers/1111/5 "2019-02-27T22:59:33Z")
