Create the "cmas2d.cnd" file, which specifies the boundary and/or load conditions of the problem type in question. In the present case, this file is where the concentrated weights on specific points of the geometry are indicated.
Enter the boundary conditions using the following format:

CONDITION: Name of the condition
CONDTYPE: Type of entity which the condition is to be applied to. This includes the parameters "over points", "over lines", "over surfaces", "over volumes", "over layers" or "over groups". In this example the condition is applied "over points".
CONDMESHTYPE: Type of entity of the mesh where the condition is to be applied. The possible parameters are "over nodes", "over body elements" or "over face elements". In this example, the condition is applied on nodes.
QUESTION: Name of the parameter of the condition
VALUE: Default value of the parameter
…
END CONDITION
…

In GiD, the information in the "cmas2d.cnd" file is managed in the conditions window, which is found in Data->Conditions.

CONDITION: Point-Weight
CONDTYPE: over points
CONDMESHTYPE: over nodes
QUESTION: Weight#UNITS#
VALUE: 0 kg
END CONDITION

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