Cannot Run MultiCCA

[AAA-3]

PLEASE IGNORE THIS - I HAVE POSTED MY CONCERNS ON THE 'ISSUES' PAGE

I am trying to duplicate my supervisor's code to introduce myself to Seurat and R.

I need to conduct a multiCCA analysis which she was able to do in Seurat 3.x using:

Wittmann <- RunMultiCCA(object.list = Wittmann.list, genes.use = genes.use, num.cc=30)

When I try to run the same line of code in Seurat 4.0.4, I get

Error in RunMultiCCA(object.list = Wittmann.list, genes.use = genes.use, : could not find function "RunMultiCCA"

I know that Seurat uses RPCA instead of CCA but that is restricted to 2 object only and I need to compare more than three. Any idea how to do this in the new version of Seurat?