We can set the display category like below mentioned liferay-display.xml. Suppose we have developed one portlet where portlet ID we have provided. We need to ENTER the custom built liferay portlet into certain category like name "category.cms", "category.collaboration" etc.

By doing this custom built liferay portlet would come in required category by CLICKING the add APPLICATION feature of liferay as there would be many of portlets under different categories. So below TAG we need to enter for the entry of a portlet into certain category.

<display>
<category name="category.cms">
<portlet id="20" />
</category>
</display> 

We can set the display category like below mentioned liferay-display.xml. Suppose we have developed one portlet where portlet ID we have provided. We need to enter the custom built liferay portlet into certain category like name "category.cms", "category.collaboration" etc.

By doing this custom built liferay portlet would come in required category by clicking the add application feature of liferay as there would be many of portlets under different categories. So below tag we need to enter for the entry of a portlet into certain category.

<display>
<category name="category.cms">
<portlet id="20" />
</category>
</display>