Change the show of Dimension

[#1]

Hi,

Now I have a table like this

how can I change the show of X-value dimension like the following?

[#2]

Yes! It could work! thanks!

[#3]

Is the value continuing?

[#4]

I think this is what you want. Please see attachment.

[#5]

Thanks but I just want to change the show of the X-value not the expression....In your method while the show of the yearmonth has been changed but it related value has not been changed....