collections_build_list_paired.md

---

title: Creating a paired collection
area: collections
box_type: tip
layout: faq
contributors: [shiltemann, hexylena,lldelisle, pavanvidem]

---

• Click on {% icon galaxy-selector %} Select Items at the top of the history panel 

• Check {% if include.datasets_description %}{{ include.datasets_description }}{% else %}all the datasets in your history you would like to include{% endif %}

• Click {% if include.n %}{{ include.n }}{% else %}n{% endif %} of N selected and choose Advanced Build List

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• You are in collection building wizard. Choose Flat List and click 'Next' button at the right bottom corner.

  {:width="15%"}

• Check and configure auto-pairing. Commonly matepairs have suffix _1 and _2 or _R1 and _R2. Click on 'Next' at the bottom.

  {:width="15%"}

• Edit the List Identifier as required.

• Enter a name for your collection

• Click Build to build your collection

• Click on the checkmark icon at the top of your history again