There are lots of things you can do using Google Tag Manager. Check this blog on how to set up scroll tracking using Google Tag Manager.
STEP 1: Enable Built-In Variables
Navigate to 'Variables' and click 'Configure' in 'Built-In Variables' section, Then
go to 'Scrolling' Section tick/select ‘Scroll Depth Threshold’, ‘Scroll Depth Units’ and ‘Scroll Depth Direction’ variables.
STEP 2 - Create Scroll Depth Trigger
Create a new trigger for scroll depth, select Trigger Type 'Scroll Depth' and select vertical Scroll Depths. Add Percentage i.e. 10,25,50,75. Fire on all pages and save.
STEP 3 - Create Tag to send scrolling events to Analytics
a) Add a new Universal Analytics event tag and select google analytics tag, select 'Event from Track Type drop down
b) Add appropriate values for category, action, and label. Add % in Action.
c) If you do not want scroll events to impact your bounce rate at all, you should toggle the Non-Interaction Hit field to True.
d) Trigger this in all pages
Check this Video tutorial for more details
STEP 1: Enable Built-In Variables
Navigate to 'Variables' and click 'Configure' in 'Built-In Variables' section, Then
go to 'Scrolling' Section tick/select ‘Scroll Depth Threshold’, ‘Scroll Depth Units’ and ‘Scroll Depth Direction’ variables.
STEP 2 - Create Scroll Depth Trigger
Create a new trigger for scroll depth, select Trigger Type 'Scroll Depth' and select vertical Scroll Depths. Add Percentage i.e. 10,25,50,75. Fire on all pages and save.
STEP 3 - Create Tag to send scrolling events to Analytics
a) Add a new Universal Analytics event tag and select google analytics tag, select 'Event from Track Type drop down
b) Add appropriate values for category, action, and label. Add % in Action.
c) If you do not want scroll events to impact your bounce rate at all, you should toggle the Non-Interaction Hit field to True.
d) Trigger this in all pages
Check this Video tutorial for more details
