Plotting heatmap of genes in each samples scRNA in Seurat

Question

[Hien]

Hi,

I am working on single cell data from two samples. I have identified cell types in each clusters by using genes expression using Seurat in R. However, it comes from merge Seurat. I want to plot a heatmap which shows genes scores for the marker genes in one expression module (one cluster) from two samples (one control and one treatment). Example figure is a follows. Please let me know how best I can plot this type of image using Seurat or any other pipeline. Or please give me a hint to solve it!

Thanks a lot for your kind help!