diff --git a/brmsaptool.scm b/brmsaptool.scm
index b4015f4..cf2b17e 100644
--- a/brmsaptool.scm
+++ b/brmsaptool.scm
@@ -50,6 +50,10 @@
 (members-base-tests!)
 (newline)
 
+;; Command-line options and configurable parameters
+(define *members-directory* (make-parameter "members"))
+
+;; Arguments parsing
 (command-line
  print-help
  (-h () "This help"
@@ -58,9 +62,13 @@
      (print-help)
      (newline)
      (exit 0))
+ (-MB (dir) "Members base directory" (*members-directory* dir))
  (-mfkw () "Member-File invalid Key Warning" (*member-file-check-syntax* 'warning))
  (-mfkq () "Member-File invalid Key Quiet" (*member-file-check-syntax* 'quiet))
  (-mfec (n) "Member-File parser Error Context (lines)" (*member-file-context* (string->number n))))
 
-(load-members "members" #t)
+;; Load the members database (required for everything anyway)
+(define MB (load-members "members" #t))
 
+;; ...
+(void)
diff --git a/dictionary.scm b/dictionary.scm
index f6672f6..b221df8 100644
--- a/dictionary.scm
+++ b/dictionary.scm
@@ -34,6 +34,7 @@
   dict-keys
   dict-map
   dict-filter
+  dict-reduce
   dictionary-tests!
   )
 
@@ -117,6 +118,16 @@
 		   (cons (car d) r)
 		   r)))))
 
+ ;; Reduce over dictinary, the reducing procedure gets accumulator,
+ ;; key and value as its three arguments.
+ (define (dict-reduce init proc d)
+   (let loop ((d d)
+	      (acc init))
+     (if (null? d)
+	 acc
+	 (loop (cdr d)
+	       (proc acc (caar d) (cdar d))))))
+
  ;; Performs self-tests of the dictionary module.
  (define (dictionary-tests!)
    (run-tests
@@ -144,6 +155,9 @@
 					 '((a . 1)
 					   (b . 2)))
 		'((a . 1)))
+   (test-eq? dict-reduce
+	     (dict-reduce 0 (lambda (a k v) (+ a v)) '((a . 1) (b . 2)))
+	     3)
    ))
 
  )
diff --git a/members-base.scm b/members-base.scm
index 187b9b5..8a086c9 100644
--- a/members-base.scm
+++ b/members-base.scm
@@ -117,6 +117,15 @@
 	     #t
 	     (loop (cdr lst))))))
 
+ ;; Returns the first 4-digit symbol from the list.
+ (define (get-4digit-symbol-from-list lst)
+   (let loop ((lst lst))
+     (if (null? lst)
+	 #f
+	 (if (is-4digit-symbol? (car lst))
+	     (car lst)
+	     (loop (cdr lst))))))
+
  ;; Returns dictionary containing only records with either 4-digit
  ;; name or one of its aliases being 4-digit.
  (define (files-dictionary-filter-4digit-symbols d)
@@ -138,7 +147,8 @@
 		(make-pathname mdir fname)))))
 
  ;; Loads members database, if the second argument is true, shows
- ;; progress.
+ ;; progress. Members database is a dictionary with id being the key
+ ;; (number) and member record being the value.
  (define (load-members dn . opts)
    (let ((progress? (and (not (null? opts))
 			 (car opts))))
@@ -147,17 +157,33 @@
      (let* ((fss (files-dictionary-filter-4digit-symbols
 		  (files+symlinks->files-dictionary
 		   (get-files+symlinks dn))))
-	    (mb (dict-map
+	    (mb0 (dict-map
 		 (lambda (symfn symlinks)
 		   (when progress?
 		     (display "."))
 		   (members-base-load-member dn
 					     (symbol->string symfn)
 					     symlinks))
-		 fss)))
+		 fss))
+	    (mb (dict-reduce (make-dict)
+			     (lambda (acc key val)
+			       #f)
+			     mb0)))
        (when progress?
 	 (print " ok."))
-       mb)))
+       mb0)))
+
+ (define (find-member-by-id mb id)
+   #f)
+
+ (define (find-member-by-nick mb nick)
+   #f)
+
+ (define (list-members-ids mb)
+   #f)
+
+ (define (list-members-nicks mb)
+   #f)
 
  ;; Performs self-tests of this module.
  (define (members-base-tests!)
@@ -181,6 +207,9 @@
     (test-false is-4digit-symbol? (is-4digit-symbol? '|ABC|))
     (test-true list-contains-4digit-symbol? (list-contains-4digit-symbol? '(|0000| abc |666|)))
     (test-false list-contains-4digit-symbol? (list-contains-4digit-symbol? '(|00000| abc |666|)))
+    (test-eq? get-4digit-symbol-from-list
+	      (get-4digit-symbol-from-list '(|000| abc |6666| qwer))
+	      '|6666|)
     ))
 
  )