Add custom thresholds option OPS-2721
Add custom thresholds option OPS-2721

mitodl/configuration,mitodl/configuration,stvstnfrd/configuration,Stanford-Online/configuration,edx/configuration,gsehub/configuration,Stanford-Online/configuration,appsembler/configuration,Stanford-Online/configuration,arbrandes/edx-configuration,EDUlib/configuration,stvstnfrd/configuration,mitodl/configuration,appsembler/configuration,rue89-tech/configuration,hks-epod/configuration,EDUlib/configuration,appsembler/configuration,rue89-tech/configuration,arbrandes/edx-configuration,stvstnfrd/configuration,rue89-tech/configuration,arbrandes/edx-configuration,mitodl/configuration,gsehub/configuration,appsembler/configuration,stvstnfrd/configuration,gsehub/configuration,edx/configuration,edx/configuration,hks-epod/configuration,hks-epod/configuration,stvstnfrd/configuration,Stanford-Online/configuration,arbrandes/edx-configuration,hks-epod/configuration,hks-epod/configuration,gsehub/configuration,EDUlib/configuration,EDUlib/configuration,Stanford-Online/configuration,rue89-tech/configuration,gsehub/configuration,EDUlib/configuration,edx/configuration,arbrandes/edx-configuration,rue89-tech/configuration