r.lake
r.lake.layer - Fills lake at given point to given level.
Raster (r.*)
ParameterRaster|dem|Elevation|False
ParameterNumber|wl|Water level|None|None|1000.0
ParameterRaster|seed|Raster layer with starting point(s) (at least 1 cell > 0)|False
ParameterBoolean|-n|Use negative depth values for lake raster layer|False
OutputRaster|lake|Output raster map with lake