Create Your Own Filter for Free with InVideo’s Snapchat Geofilter Maker

You can add overlays to your scene either on the 'Edit Scene' modal or the 'Advanced Editing' screen using the same process.
Here are the steps for the same:
Step 1: Select the scene to which you want to apply the overlay.
Step 2: On the left panel, under the 'Elements' tab, click 'Overlays.'
Step 3: Select a category of overlays.
Step 4: Hover on an overlay to see a preview.
Step 5: Click on an overlay to add it to your scene.

To connect your social media accounts to InVideo, follow these steps:
Step 1: Go to 'Brand Presets' under the drop-down menu in the upper-right corner of your screen.
Step 2: Go to the 'Social Accounts' tab.
Step 3: Click 'Connect' on the social media account that you want to connect. If you are connecting to YouTube, you will first need to select a Google account.
Step 4: Provide the necessary permissions. Your account is now connected.

To share your videos to social media through InVideo, follow these steps:
Step 1: Export your video.
Step 2: On the 'My Projects' screen, select the video you want to share.
Step 3: Hover over the video and click on the share sign.
Step 4: Select the social account where you want to share the video.
Step 5: Provide the necessary permissions. If you are the admin of a page or a channel, only then you will be able to share videos to that page or channel.
Step 6: Click Publish or Upload. You will receive an email once your video has been posted.
Here is a detailed tutorial on how to connect and share videos to social media through InVideo.
Note - The 'Settings' page has been renamed to 'Brand Presets.'