#@ File[] (label = "Choose input files", style = "files, extensions:tiff") files
// Concatenate Stacks Action Tool

// 1) Select Files 


Array.show(files);

// Get parent directory name for afterwards
par = File.getParent(files[0]);
fn = File.getNameWithoutExtension(files[0]);

// Open each stack and concatenate
for (i = 0; i < files.length; i++) {
	open(files[i]);
	
	// Cant concatenate less than 2 stacks 
	if (i == 0) {
		stk = getTitle(); 
	} // if statement
	
	// Concatenate videos onto the same stack
	if (i > 0) {
		// open next
		next = getTitle();
		run("Concatenate...", "open image1=[&stk] image2=[&next]");
		stk = getTitle();
	} // if statement
} // for loop

// Rename the stack based on first file name directory name
rename(fn+"_concat.tif");