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Project data & BIM
About BIM-based management of attributes, schedules, templates, favorites, hotlinks, projects in general, quality assurance, etc.

What does saving as mod mean?


1. Does the mod file's path disappear?
2. I'm not sure if it's accurate, but it seems like GDL files cannot be saved with ctrl+S.
3. Isn’t it better to hotlink with PLA than save with mod?

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AC27 on window 11

A MOD file only includeds model elements and floorplan data and requires the host to have all of the relevant libraries and attributes loaded. It is faster to save and to update then using full PLN files or PLAs. One place to use MODs is if you are doing Hotlinks with the iceberg method.


I also use MODs for site plans where I save out only the exteriors of buildings, or relevant parts required for perspectives. This helps keep the file size down as well as reducing the out-of-date notifications from when you change any minor thing in your buildings.




AC22-23 AUS 7000Help Those Help You - Add a Signature
Self-taught, bend it till it breaksCreating a Thread
Win11 | i9 10850K | 64GB | RX6600 Win10 | R5 2600 | 16GB | GTX1660

Could you please explain a little more about the "iceberg method"?

I understood you to mean that in general, you should work with PLN and use it only in fixed cases such as 3D, since you will be doing a lot of modifications such as GDL. ^^

AC27 on window 11
Karl Ottenstein

Explained in the Graphisoft Hotlink Guide PDF ... which is free for SSA/Forward members by entering the code as shown:


Iceburg not mentioned... but that method is storing the module info on negative stories (like an iceburg has so much more under the water than above) ...  A recent thread with opinions:


Not iceburg, but see also:


One of the forum moderators
AC 27 USA and earlier   •   macOS Ventura 13.6.6, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB

Karl, I have SSA activated for my account, but it still says the document under the link you provided is 25$.
How can I access it? 

It is not so clear but there are two buttons.

Click the 'Enter access code' one and enter the access code 'FORWARD'.




If you are an SSA/Forward subscriber, you should then have access for free.



One of the forum moderators.
Versions 6.5 to 27
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Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11

Thanks, but I get "Incorrect access code, try again." after I enter 'FORWARD'.

But when I check my profile information (/user/information/), it says "SSA: Yes".

Hello Barry, @wkrt-hs ,

As a Forward/SSA client you can access the E-book free of charge by adding it into your shopping cart and applying the FORWARD coupon code there. Please note that the coupon code will only work if you have your Archicad license connected to your Graphisoft ID. You can find more instructions here: 


If you experience any issues, please reach out to us at and we'll help you sort it out.


All the best,

Akos Karoczkai
Manager, Professional Services, Customer Success, Graphisoft 

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