How three separate and independent descriptors are presented as one

The AME presents the Field Counts and OIA descriptor as one descriptor (see Figure 1). However, in fact each of the three parts of the Field Counts and OIA descriptor on the Description tab corresponds to a separate and independent descriptor in the underlying XML macro language. Specifically:

The Number of Fields setting is stored as a <numfields> descriptor.
The Number of Input Fields setting is stored as a <numinputfields> descriptor.
The Wait for OIA to Become Uninhibited setting is stored as an <oia> descriptor.

Table 1 lists these three types of descriptors and shows how many of each can occur within a <description> element:

Table 1. Three types of <description> element descriptors
Type of descriptor:	Number of this type of descriptor allowed per macro screen (that is, per <description> element):
<oia>	1 (required)
<numfields>	1 (optional)
<numinputfields>	1 (optional)

As Table 1 shows, only one of each type of these descriptors can occur in a <description> element. The <oia> descriptor is required, but the <numfields> descriptor and the <numinputfields> descriptor are optional. The macro editor enforces these rules.

For example, look at a Field Counts and OIA descriptor first as it appears on the Description tab of the AME and then in the source view. Figure 1 shows a Field Counts and OIA descriptor on the Description tab. The settings of the three parts of the Field Counts and OIA descriptor are set as follows:

Number of Fields:  80
Number of Input fields:  3
Wait for OIA to Become Uninhibited:  true

But if you look at the corresponding <description> element in the source view, you see the following:

Figure 1. A <description> element with three descriptors

<description>
   <oia status="NOTINHIBITED" optional="false" invertmatch="false" />
   <numfields number="80" optional="false" invertmatch="false" />
   <numinputfields number="3" optional="false" invertmatch="false" />
</description>

The XML code fragment in Figure 1 shows that the <description> element contains three separate and independent descriptors, each corresponding to one of the three parts of the Field Counts and OIA descriptor.

Suppose that you change the Field Counts and OIA descriptor settings to be as follows:

Number of Fields:  (blank)
Number of Input fields:  (blank)
Wait for OIA to Become Uninhibited:  true

Setting the first two fields to blank tells the AME that these items are not to be included in the script. If you look again at the corresponding <description> element in the source view you now see:

<description>
   <oia status="NOTINHIBITED" optional="false" invertmatch="false" />
</description>

The XML code fragment above shows that the <description> element now contains only one descriptor, an <oia> descriptor corresponding to the Wait for OIA to Become Uninhibited setting in the Field Counts and OIA descriptor.