Question about steps and attendance policy

Ok so I noticed recently on my attendance I have multiple days where it says commended -1step and I was just curious if I need to call in a day will these -1 steps be used? Basically would it just show up as me using those to where I would not receive a step for it? Or can i not like save them up to be used later on?, or would I only be able to utilize them if I already had steps to be taken off when I got the commended,Hope this makes sense I’m pretty new and just curious cuz it wasn’t really explained to me clearly