How to only use selected values in a dimension on a bar chart

[#1]

Hello,

I am having trouble editing a dimension to only include certain values.  The dimension is called [Module] and it is a list of over 80 modules.  I want to create a bar chart that only shows the pass rates of the modules that contain a certain value, such as 'Core 1' or 'Core 2'. 

I've tried dimension grouping however that only allows me to see the 'Core 1" modules as 1 bar, but I need a separate bar for each 'Core 1' module and all other modules to not appear on the chart

Any help is appreciated!

Thanks

[krissy_s]

Thank you!