Tampermonkey script for replacing dropdowns in zabbix with select2 type-ahead-search dropdowns.
First install Tampermonkey in Google Chrome or Tampermonkey in Firefox.
Next, click here to install the userscript.
Make sure Tampermonkey is enabled, as explained here
If your zabbix hostname does not start with https://zabbix you will have to go to the script settings in Tampermonkey to enable it on your hostname.