Decimals in Armor Damage Values

Hello. I am using Mcreators newest non snapshot version (Or at least I believe it is the newest non snapshot version, when I am writing this I will check to make sure.) And I feel like I remember being able to put .5 in the Damage values of armor in older Mcreator versions, but I cannot now. Whats the reason for this? And could you actually do It in older versions or am I going crazy lol.