Picture string examples

To find a string of 3 numeric characters:
- ```
FIND P'###'
```
To find any 2 characters that are not blanks but are separated by a blank:
```
FIND P'¬ ¬'
```
To find any character that cannot be displayed:
```
FIND P'.'
```
To find a blank followed by a numeric character:
```
FIND P' #'
```
To find a numeric character followed by AB:
```
FIND P'#AB'
```
To find the next character in column 72 that is not a blank:
```
FIND P'¬' 72
```
To change any characters in columns 73 through 80 to blanks:
```
CHANGE ALL P'=' ' ' 73 80
```
To find the next line with a blank in column 1 and a character in column 2 that is not a blank:
```
FIND P' ¬'  1
```

When you use the special characters = or . and a character that cannot be displayed is found, that character's hexadecimal representation is used in the confirmation message that appears in the upper-right corner of the panel. For example, the command FIND P'..' could result in the message CHARS X'0275' FOUND.