CapCut is a popular video editing app, primarily available for mobile devices. Please note that the app may have been updated or changed since then, so the steps provided here may not be entirely up to date. However, I can give you a general idea of how to customize text templates in CapCut based on its typical functionality.

To customize text templates in CapCut, you can follow these general steps:

Open CapCut: Launch the CapCut app on your mobile device.

Create a New Project: If you're not already in a project, create a new one by selecting the "New Project" option or opening an existing project where you want to add text templates.

Add Your Video Clips: Import the video clips or images you want to edit into your project timeline. You can do this by tapping the "+" icon or a similar button that allows you to add media to your timeline.

Add Text Layer: To add a text template, tap on the "Text" option, usually represented by a "T" icon. This will create a new text layer on your timeline.

Select a Text Template: CapCut often provides various pre-designed text Capcut templates that you can choose from. Browse through the available options to find a template that suits your project's style.

Edit Text Content: Once you've selected a template, you can tap on the text layer to edit the text content. Replace the placeholder text with your desired text.

Customize Text Style: You can typically customize the text style, such as font, size, color, and alignment. Look for text customization options in the app's editing interface. These options may be accessible through icons like "A" for text customization.

Animate Text (Optional): CapCut often allows you to add animations or effects to your text. Explore the animation options to make your text dynamic and engaging.

Position and Duration: Adjust the position of the text on the video and its duration on the timeline. You can typically drag the text layer to the desired position and adjust its length by dragging its edges.

Preview Your Project: Preview your video to see how the text template looks in the context of your project. Make any necessary adjustments until you're satisfied.

Export Your Video: Once you're happy with the customization of the text template and the overall project, export your video. Typically, there's an option to export or save your edited video in CapCut.

Please keep in mind that app interfaces and features can change with updates, so the exact steps and options may vary. Make sure to consult the app's documentation or help section for the most up-to-date instructions specific to your version of CapCut.