Rehost Level

During the course of a project sometimes a level becomes unnecessary, or elements may simply be placed on the wrong level by accident. The Level Rehost tool was designed to quickly move elements from one level to another.

Prior to activating the Level Rehost command, the elements to be rehosted must be selected. If you are attempting to remove all elements from a level in order to delete the level try using Quick Level to select the elements.

Once the command is activated a dialog box is given with the following options:

• New Level - This is the new level that elements should be placed on once the command is complete.
• Modify Offsets Check box - This option allows you to maintain the physical location of an object when rehosting it to a new level. If checked, this option will create offsets from the new top or base constraint to maintain the actual location of the element. If unchecked, the constraint will be moved to the new level with the same offset as current.
  • For example, if an element is 1'-0" offset from Level 1 (0'-0" level height) and is rehosted to Level 2 (15'-0" level height) it will have an offset of -14'-0" from Level 2; if offsets are not created, it would have an offset of 1'-0" from level 2.
• Constraint to Set - This option is similar to multi-level handling, but in this case it determines the constraint that is to be set for multi-level elements.

It is possible when using the Modify Offsets option that an objects levels will become reversed. In other words, an element could have it's base constrained to a level that is higher than it's top constraint. When the rehost command is run, Selection Master will give a list of the elements that would be reversed with the current settings (if any) and display that list to the user. The dialog displayed gives the user the option to skip these elements (don't rehost them) or allow the reversal (rehost them anyway).

Please note the that due to limitations in the current Revit API, workplane based elements hosted on a level are not currently able to be rehosted; such elements will be skipped. At the end of the command the user will be presented with a list of all such elements that failed to rehost (all other elements will be rehosted normally). Elements that fit this description will have a parameter named 'Workplane' listed in the instance properties box, and the value for that parameter will be 'Level : levelname' where 'levelname' is the name of the level it is associated with.

Elements that CAN be rehosted are as follows:

• Standard family instances that use the ‘Level’ parameter
• Model Groups using the ‘Reference Level’ parameter
• Workplane based elements hosted on anything other than a level that use the ‘Schedule Level’ parameter
• Multi-Level elements