...

Seurat3 integration in Flow can be invoked in Normalization and scaling Batch removal section if a Normalized counts data node is selected (Figure 1). 

...

Figure 1. Seurat3 integration task in Normalization and scaling Batch removal section in Flow.

To run Seurat3 integration, 

• Click a Normalized counts data node
• Click the Normalization and scaling section Batch removal section in the toolbox
• Click Seurat3 Integration

...