Here is the easiest solution I have found so far:
1: Open your google sheet. Click on extensions, then hover over Add-ons, then click on Get add-ons.
2: Search for “Sheet Automation”. (see image below) Click Install.
- Once installed, click again on Extensions, then hover over Sheet Automation, then click on Open.
- Once the extension loads click on the +New Rule button.
- Name your rule, set the desired trigger, define the condition for the rule, set the action, then save. (Note: The below example resets all users’ data in a column back to “1” after any glideapps action changes any cell in that column. In this example I reset a player’s profile image from an action .gif image to its original resting .gif image, effectively creating a character animation. This can take anywhere from 0.1 seconds to 10 seconds depending on the device.)
- At present the triggers will only work on free accounts on manual changes within Google Sheets. However, the extension developer will allow testing of 3rd party triggers as described above. Send them an email on their website (below) to request access—or pay $49 for a year for 30,000+ triggers, if that’s more your speed.
I hope this helps until the Glide team is able to implement a wait/delay system. 
