Support

Last updated: 2 September 2026

The questions that come up most, with the full answer. If yours is not here, write to us. We reply within 2 business days.

Installation

Windows says the app is not safe

This is expected and does not mean anything is wrong with the file. When you open the installer, Windows shows a blue SmartScreen panel saying "Windows protected your PC".

The warning appears because the installer does not carry a code signing certificate yet, a document that costs a good deal and that we are in the process of buying. Until then, every new and rarely downloaded program gets that alert, regardless of what is inside it.

To continue: click More info and then Run anyway. If you would rather check first, the file always comes from the same address, nivelabim.com/downloads/, and you are welcome to submit it to VirusTotal.

I installed it and the plugin is not in Revit

Close Revit completely and open it again: Revit only reads installed plugins at start-up, so an installation done while it was open will not show until you restart.

If it still does not appear, check the version. AutoDimension works on Revit 2025 and 2026. It does not load on earlier ones.

Licence

The key never reached my inbox

It is sent automatically as soon as the subscription is created, to the email used for payment. Before writing, check your spam folder and, on Gmail, the Promotions tab.

You can also see the key at any time in My account, signing in with the same email you paid with. There is no password: you receive a sign-in link.

I changed computers, or reinstalled Windows

The subscription covers up to 2 devices at a time. Reinstalling Windows counts as a new device, so it is common to hit the limit without having two machines in use.

Go to My account, look at the device list and remove the one you no longer use. The slot is freed immediately.

It says "device limit reached"

Same case as above: two computers are already using your key. Remove one from the account page and activate again.

I think someone else is using my key

Removing their device does not solve it: the key is still valid, and with it they can activate again. What solves it is changing the key, in My account, with the generate new key button.

The old key stops working at once and every computer is deactivated, including yours. You receive the new key by email and paste it again on your machines. The inconvenience is deliberate: it is the only way to be sure nobody was left behind.

Subscription

How do I cancel

In My account, through the subscription portal. There is no penalty and no minimum term, and your access keeps working until the end of the period you already paid for.

Cancel during the 7-day trial and nothing is charged at all.

My bank flagged a charge during the free trial

It is not a charge. When the subscription starts, the card goes through a validity check of zero or a token amount, which reverses automatically within a few days. Some banks notify you anyway.

I want my money back

You have 7 calendar days after the first charge to change your mind and get the full amount back, with no need to explain why. Write to [email protected] from the email you paid with.

Using it

The dimensions came out differently than I expected

Before redoing them by hand, it is worth reading the known limitations (in Portuguese for now): there are cases the plugin does not handle well yet, and they are listed there without varnish.

If your case is not on that list, we very much want to see it. Send the report the plugin produces at the end of a run and, if you can, an image of the plan. That is how the dimensioning rules improve.

Can it be undone?

Yes, with Ctrl+Z, in the same Revit session. Even so, save a copy of the project before running the plugin for the first time on something real. It is good practice with any tool that edits the model.