> For the complete documentation index, see [llms.txt](https://docs.layermanager.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.layermanager.xyz/user-manual/how-to.../analysis/modify-view.md).
# Modify view
A LamaView serves for the analysis of the data, and the export to other applications. LamaViews can be modified by adding/ removing columns, and applying functions such as "Sum rows".
\+ **Add/Remove columns:**
{% hint style="warning" %}
Only columns which are **covered by the selected objects** are displayed in the view.
{% endhint %}
\+ **Sum rows**: If hooked, the rows are summed up so that, the values hooked columns are similar and numbers in other columns are summed up.
{% hint style="warning" %}
Only columns based on data type **integer** or **decimal** are summed up.
{% endhint %}
**+ Filter rows:** A filter can be applied on the view. If the rows are summed up, a filter can be applied before or after the rows are summed up.
> **Example**: Count no of objects\
> You can count the number of objects of a specific element type. For this, each ElementTable has an attribute "Count", where the no. of objects is entered (i.e., 1).
>
> **Step 1**: Add columns "Element" and "Count" to your view.
>
> **Step 2**: Hook "Sum rows" (Sum symbol) for column "Element"
>
> **Step 3**: Set Sum function for column "Count" to sum.
***
{% content-ref url="/pages/QaCZMdEbW4vyAUmViUTj" %}
[Create view](/user-manual/how-to.../analysis/create-view.md)
{% endcontent-ref %}
{% content-ref url="/pages/OUwjzz4UyU2cPuSXgisD" %}
[LamaView](/user-manual/how-to.../transfer/lamaview.md)
{% endcontent-ref %}
