Hello,
I am editing the form below and would like to add a (preferably)mandatory checklist for people to fill out:

These are the steps I'm trying to follow, but I cannot find this "data" field in powerapps main page, I assume they mean "dataverse"? But when I go there , none of the subsequent steps line up:
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Open Power Apps, go to your environment, and select Data from the left navigation.
Click on the entity where you want to add the checklist field.
Click on New field.
In the Field type drop-down, select Multi-Option Set.
Provide a name for the field and then click on the Add options button.
Enter the values for each option in the Options section. You can choose up to 20 options.
Click on Save and Close.
Go to the form where you want to add the checklist field.
Click on Add a field, select the checklist field that you created, and click on Add.
You can now modify the properties of the checklist field, such as label, size, and position, by selecting the field in the form designer and using the property editor.
When you are done, click on Save and Publish to make your changes live.
Now, users will be able to select multiple options from the checklist field when they fill out the form.//
I am new to this and have been reading and watching videos, but I'm not sure if I'm missing something obvious or what. Thank you.