Steps After installation of Cooluri from Extansion manager.
Step1 : copy file EXT:cooluri/coouri/CoolUriConf.xml_default file into ./typo3conf folder and rename it CoolUriConf.xml .
Step2 : After that include this 3 line typoscript code into your typoscripts folder.
config.baseURL = include youe baseurl
config.tx_cooluri_enable = 1
config.redirectOldLinksToNew = 1
After step2 you can see this screenshot in backend like ,
After this go inside Caches links. And click on all option which display in
Step -5 After this you can show Edit icon like,( Screenshot-3)
You can edit url of given id . After this click on Upadate this URI option .
NOTE: if you give same URI name than it will not take and change uri but give Error massage.