# Adding sample attributes Attributes describe samples. Examples of sample attributes include treatment group, age, sex, and time point. Attributes can be added individually in the Metadata tab or in bulk [using a text file](https://help.connected.illumina.com/partek/quick-start-guide#the-metadata-tab). In this tutorial, we will add one attribute, 5-AZA Dose, manually. * Click the **Metadata** tab * Click **Manage** under Sample attributes (Figure 1)

Figure 1. Adding sample attributes manually

* Click **Add new attribute** (Figure 2)

Figure 2. Adding a new attribute

* To configure a new attribute, at Name, type in **5-AZA Dose** as the name of the attribute * Click **Add** to add 5-AZA Dose as a categorical, project-specific attribute (Figure 3)

Figure 3. Configuring a new attribute

* Name the first New category **0uM** * Click the plus icon to add category (Figure 4) * Repeat for two additional categories, **5uM** and **10uM** (Figure 5)

Figure 4. Creating attribute category

Figure 5. All category attributes for 5-AZA Dose

* Click **Back to metadata tab** The data table now includes an Attribute column for 5-AZA Dose (Figure 6). Next, we need to assign samples attribute categories for 5-AZA Dose.

Figure 6. Data table updated with column for 5-AZA Dose

* Select Assign values The option to edit the 5-AZA Dose field for each sample will appear as a drop-down menu (Figure 7).

Figure 7. Dropdown menu to select treatment for each sample

* Select the 5-AZA Dose text box for a sample to bring up a drop-down menu with the 5-AZA Dose attribute categories (0uM, 5uM, 10uM) * Use the drop-down menus to add a treatment group for each sample The first three samples (SRR592573-5) should be **0uM**, the next three samples (SRR592576-8) should be **5uM**, and the final three samples (SRR592579-81) should be 10uM (Figure 8). * Click **Apply changes**

Figure 8. Add 5-AZA dose to each sample as shown

The data table will now show each a 5-AZA Dose attribute for each sample. ## Additional Assistance If you need additional assistance, please visit [our support page](http://www.partek.com/support) to submit a help ticket or find phone numbers for regional support.