On the dashboard, click on Create Task.

First Step

You can skip this step and bulk edit all products in your store.

Or choose the products to be bulk edited by adding filters.

Filter by 12 fields available.

Each filter require field, action and expression.

You can add as many filters as you need to specify the products you want to bulk edit.

Second Step

Choose the fields to bulk edit. Currently, 3 fields are available.

For example, add the word PROMOTION at the beginning of the Product Title.

Reduce the variant price by 10% and increase the variant compare at price by 10.

Please refer to the screenshot below.

You will need to add the attributes such  as {{product_title}}, {{variant_price}}, and {{variant_compare_at_price}} on your own. And you can add the formula accordingly.

Run the Task

Once done, you will be redirected to the Task Info page

You can either run the task now or run later by scheduling it.