Need to know when input capacity is set

[jeroens]

It would be very handy to know, whilst setting the Ecospace capacity model, if the model is:

• being driven by input capacity patterns
• input capacity is missing

[jeroens]

Added a column to the group capacity model grid that summarizes if input capacity is

• at default (no info)
• is missing (e.g., input grid averages to 0 or -9999 value)
• is driven through external data connections.

This extra info provides overview when setting up the capacity model, per group