Best way to do this, would be to use Clish commands:
[Expert@MDS]# clish -c "show configuration cron"
add cron job MDS_backup command "/backup/scripts/BackupMDS >/dev/null 2>&1" recurrence daily time 1:00
add cron job MDS_LogClean command "/backup/scripts/LogRem >/dev/null 2>&1" recurrence daily time 0:00
[Expert@MDS]# crontab -l
# This file was AUTOMATICALLY GENERATED
# Generated by /bin/cron_xlate on Mon Sep 30 07:11:11 2019
#
# DO NOT EDIT
#
SHELL=/bin/bash
MAILTO=""
#
# mins hrs daysinm months daysinw command
#
##MDS_LogClean
00 0 * * * /backup/scripts/LogRem >/dev/null 2>&1
##MDS_backup
00 1 * * * /backup/scripts/BackupMDS >/dev/null 2>&1
Regards, Maarten