# New and confused

**URL:** <https://discourse.mapeditor.org/t/new-and-confused/2765>\
**Category:** Questions\
**Created:** [October 10, 2017, 7:59pm UTC](https://discourse.mapeditor.org/t/new-and-confused/2765 "2017-10-10T19:59:17Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![jgedri](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.mapeditor.org/jgedri/32/1512_2.png) [@jgedri](https://discourse.mapeditor.org/u/jgedri)\
**Post date:** [October 10, 2017, 7:59pm UTC](https://discourse.mapeditor.org/t/new-and-confused/2765/1 "2017-10-10T19:59:17Z")

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Hello! I just joined this forum and have a few questions about using Tiled. Let’s start with an easy one. Why is it that when I create a new layer, I can’t place a new tile on top of one that’s already placed on a previous layer? For instance, I’m using the “desert” tileset from the examples; why can’t I place a bush atop a sand tile?

Thanks for listening and responding.

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**Author:** ![bjorn](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.mapeditor.org/bjorn/32/1599_2.png) [@bjorn](https://discourse.mapeditor.org/u/bjorn)\
**Post date:** [October 10, 2017, 8:55pm UTC](https://discourse.mapeditor.org/t/new-and-confused/2765/2 "2017-10-10T20:55:04Z")

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> [@jgedri](#):
>
> Why is it that when I create a new layer, I can’t place a new tile on top of one that’s already placed on a previous layer?

Since you actually can, my question to you is, what makes you think that you can’t?

> [@jgedri](#):
>
> For instance, I’m using the “desert” tileset from the examples; why can’t I place a bush atop a sand tile?

In this particular case, the bush tile includes a sand background which makes any tiles on layers below the layer where the push is placed invisible. When the bush tile is changed to have a transparent background, then it could be placed on a layer above the ground layer and the tile from the ground layer would show through.

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**Author:** ![jgedri](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.mapeditor.org/jgedri/32/1512_2.png) [@jgedri](https://discourse.mapeditor.org/u/jgedri)\
**Post date:** [October 10, 2017, 9:27pm UTC](https://discourse.mapeditor.org/t/new-and-confused/2765/3 "2017-10-10T21:27:01Z")

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Makes sense. My next question is: Once I’ve made a tileset with the source “a collection of images”, how do I add images to it?

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**Author:** ![bjorn](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.mapeditor.org/bjorn/32/1599_2.png) [@bjorn](https://discourse.mapeditor.org/u/bjorn)\
**Post date:** [October 11, 2017, 7:59am UTC](https://discourse.mapeditor.org/t/new-and-confused/2765/4 "2017-10-11T07:59:57Z")

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> [@jgedri](#):
>
> Once I’ve made a tileset with the source “a collection of images”, how do I add images to it?

I wish I could point to the manual, but I didn’t write this part yet.

When you edit an image collection tileset, you can find “+” and “-” buttons on the tool bar to add/remove images from it. You can also drag images onto the tileset from your file manager.