The Manual Data Entry Editor is opened from Data → New Data → Manual Data Entry.

This editor creates a dataset by typing or pasting values, with no external source file. Use it for a short record transcribed from a report, a hand-built rating curve, or test data.

There are four steps in the editor as outlined below.

Step 1 — Metadata

There are three fields in this step:

NameThis field is required and allows a max of 64 characters. This field becomes the dataset name displayed in the project tree.
DescriptionThis field is optional and allows a max of 256 characters.
Structure TypeThis field is required and defaults to Time Series. This determines the type of data for the dataset and informs the following steps of what information to ask for.

The Next button is disabled until a name has been set.

Step 2 — Data Info

The fields depend on the structure type chosen in step 1.

If Time Series:

Start Date / Start Time (UTC)These fields are required and set the beginning timestep for the Data Entry step.
End Date / End Time (UTC)These fields are required and set the ending timestep for the Data Entry step.
ParameterThis step is required and decides the project-tree category.
IntervalThis step is required and sets the time step. Also fills the DSS E-part.
UnitsThis step is required. The list is filtered to the units valid for the selected parameter.
TypeThis step is required and defines the value type / time basis — how a value relates to its interval.

A DSS-style pathname is assembled from these inputs as you type: the parameter fills the C-part, the start date fills the D-part as `DDMONYYYY`, the interval fills the E-part. The pathname is shown for reference; it is not the dataset's identity.

If Paired Data:

Curve TypeThis step is required. Selecting a curve type seeds the X and Y labels and units with that curve's defaults, in the project's unit system. Changing it re-seeds them.
X UnitsFiltered to the units valid for the curve type's X axis.
Y UnitsFiltered to the units valid for the curve type's Y axis.

Step 3 — Data Entry

If Time Series: 

The date/time column is auto-filled from the interval and the start/end range set in step 2; you enter or paste values against it. Without an interval, date/times are entered manually alongside the values.

Next requires at least one non-empty value.

Rows whose value is blank or non-numeric are dropped when saved — a blank cell is a gap, not a zero.


If Paired Data:

This step provides a two-column Ordinate table (X, Y). Next requires at least one complete pair.

Rows where either column is blank are dropped when saved.

For the pattern curve types — Percent Patterns, Storage Patterns, Elevation Patterns — the X column must additionally parse as a valid date/time pattern.

Step 4 — Confirmation

This step provides a read-only summary of the name, description, structure type, and the values as they will be stored. Review, then click Create. On success the tab closes with a confirmation message in the Message Component naming the dataset.