why there is no tool to move the symbols up or down in raster case?
Because the raster renderers are different than the feature renderers. Would be a nice enhancment request, please do contact ESRI support and let them know, or submit it at ideas.esri.com.
I will.
is there a way to link this post to the ideas.esri.com?
do they take our needs into consideration? how much time
for the time being, how can i sort the values. it doesn't make sense to arrange them alphabetically the thing that the ArcGIS does!!!