Merging classes after supervised classification

[KateEkhator74]

I recently downloaded NLCD Landcover imagery raster from MRLC to detect landcover changes between 2019 and 2001, after clipping the raster to my study area, I wanted to condense the classes for example deciduous and evergreen as forest, all type of wetlands as wetland and so on. From the imagery tab I clicked the merge classes tab and the attached screenshot appears. My question is how do I get the classification schema to condense the classes bearing mind that this raster layer has already been classified? Or are there any other way I could condense the classes in ArcGIS pro?

Thanks.

[ThomasHamill]

@KateEkhator74, have you taken a look at the Reclassify tool?

[MoazzamAliRind]

Reclassify tool disturb the cells in other classes as well. You can notice variable count for other classes in reclassified raster which we don't want to change. I found this problematic