Two of the simplest are : changing the Time Frame for every chart in a Profile, and changing the Template for every chart in a Profile.

MT4 : Change_TF_All.ex4 and Change_Template_All.ex4

MT5 : chgtf-all.ex5 and apply_template.ex5 NOTE: in mine it is named chgtf-all(1).ex5 due to duplication of downloads and i haven't bothered amending