Labeling in Qliksense Chart for "Others" field

[santho_ak]

I have a doubt in labeling in Sense chart. If some of the values in a particular field are not available & I want to label it as something else(I don't want it to be others), how would I do. Can someone help me out.   

Also, sometimes I will not be in need of the values that are NA/ empty. How would I represent in Qliksense chart.

Can someone help me out.

Thanks