Hi,
In Origin 2021, you can also use Python script for such. Select from menu Connectivity:Open Untitiled.py..., put in the following script in the Code Builder window, and hit F5 to run.
import numpy as np
import originpro as op
wks = op.find_sheet()
nn = wks.cols
wks1 = op.new_sheet()
wks1.cols = 0
for i, idx in enumerate(range(1, nn, 9)): # loop over second col of every 9 columns
data = np.asarray(wks.to_list(idx))
nc = len(data) // 5
data = np.split(data[:5*nc],nc)
wks1.from_list(wks1.cols, np.mean(data,1), f"Peak{i+1}", 'Area')
wks1.from_list(wks1.cols, np.std(data,1), f"Peak{i+1}", 'Error')
James