I've three different charts with 3 different expressions for the charts. For your reference i'm attaching sample file please check it once. If i click on 1st button it shows first chart, if i click on 2nd button it shows second chart & same for 3rd button -> 3rd chart.
Ok coming to the point, the rules for all the charts is.
1. There should be a gab b/w each expression. so that the user can easily understand ( even the data is in milli points, we need gab).
2. Click on 2nd button, you will notice that LCL expr display at bottom and UCL expr display at top it will happen for every chart. Write know in the second chart there is no values below LCL & no values above UCL but i want to see the values below and above.