Realisor has the functionality to enable you to organise the nodes on
 the map into groups. This allows different ways of interacting with the
 map, meaning that you are able to show or hide common groups of nodes. 
This allows you, for example, to view differing scenarios on the map or 
pick out important nodes for certain users.
Within
 the Node Groups area on the left hand toolbar, you have the option to 
create multiple categories for the nodes and within those categories, to
 create multiple groups.
 To 
create a new category, simply click the green plus symbol to add a 
category. To remove a category, click on the category you wish to remove
 within the list and click the red minus button. To create new groups 
within the category, select which category you wish the group to be 
contained in. Then click the green plus symbol over group. This adds a 
group to that category.  To remove a group, simply select the group and 
click on the red minus symbol over group.
To add nodes to a group, select one or more nodes and right click. At the 
bottom of this menu three options with regards to grouping nodes – ‘Add 
to Selected Group, ‘Remove from Group’ and ‘Add to Group’ – which then 
enables you to select which group you would like to add the node to. 
Clicking 'Add to Group' enables you to select which group you would like
 to add the node to.
In order to use the 'Add to Selected Group' 
option, the group that you wish to add the nodes to must be first 
selected in the tool bar on the left hand side. 'Remove from Group' 
allows you to remove the nodes from the group that they are 
already in. Each node can only be in one group per category but can be 
in multiple categories.
Nodes that are added to groups appear 
within a coloured box that has the option to minimise and display groups
 through collapsing and expanding this box.  You cannot delete groups if
 they are minimised. You can select all the nodes in a group by clicking
 on the background of the group. You are then able to drag and move the 
whole group.   When the group is minimised, it takes the shape of a 
node. This retains the colour of the group and the group title is 
displayed as the node title would be. The minimised group can be moved 
in the same way as a node, through dragging and dropping. The links 
connecting the nodes contained within the group to nodes outside the 
group are retained and move with the minimised group.
Using Groups to Search and Filter
Under the ‘Search’ tab at the top, there are Search and Filter criteria. 
In
 order to search using Groups, we have to use to Group Criteria option. 
Click on one or more of the Group headings (Group 1, Group 2 or Group 3 
on the left hand side) to activate/deactivate the Group. Using the drop 
down logic options ‘In/Not In’, ‘And/Or’, this sets up the conditions 
that will be used to filter the nodes. Once the conditions have been 
established, select ‘Filter’. This will causes nodes that do not satisfy
 the conditions to be hidden. For example, selecting 'In', 'First 
Category' and 'Second Group' and selecting 'Group 1' means that on the 
map you will see only the nodes within that group. Even though criteria 
has been set for 'Group 2' because this is not active, the nodes will 
not be displayed. Click on one or more of the Group headings to 
activate/deactivate the Groups and change/filter the views.