Landlord Vision for MTD tax requirements - can I start again with a clean sheet ?

I like this software, can I start again on a clean sheet ? as I prefer that HMRC does not check out my previous 5 years as I only use this app for expenses only and dont list the rent collected.

Also I have entered IKEA as suppler about 5 times now .. yet this does not merge into one... so I copy and correct in excell for my final report.

Please let me know ASAP .. as I am considering to swap to another software for a fresh start now Im more experienced.