> For the complete documentation index, see [llms.txt](https://multiset.gitbook.io/multiset/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://multiset.gitbook.io/multiset/basics/mapset-multiple-maps/merging-maps-without-overlap/extend-a-mapset.md).

# Extend a MapSet

### 1. Go into the MultiSet App and choose a MapSet to extend

Select the "Extend MapSet" option from the below screen and follow a similar process of selecting a new map that needs to be merged into the existing MapSet

<figure><img src="/files/lCTUExa4czZQec23sk7m" alt="" width="188"><figcaption></figcaption></figure>

### 2. Localize into any map of the existing Mapset, then localize the new map

To add a new map, just localize to any existing map of Mapset, then walk to the new map that needs to be added and localize.

{% hint style="warning" %}
Ideally, localize the closest map in the existing Mapset to the new map that's being added to reduce the walking distance and to reduce merging errors
{% endhint %}

<figure><img src="/files/EuDXAxofGqGM5Q4QhsSZ" alt="" width="188"><figcaption></figcaption></figure>


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